SYDNEY — A new technology that allows smartphones to identify strokes far quicker than existing methods has been developed by researchers in Australia. The new technology uses artificial intelligence as it scans a patient’s face for symmetry and certain muscle movements, which are called action units. People who have suffered a stroke often have one side of their face looking different from the other.   The biomedical engineers at Melbourne’s RMIT University say the smartphone technology can detect facial asymmetry, potentially identifying strokes within seconds - much sooner and more precisely than current technologies. Professor Dinesh Kumar, who led the research team, explained to Australian Broadcasting Corp. how the AI-driven device works. “It takes a video of a person who is doing a smile, and the model determines whether this particular smile is indicative of (a) person who has had a stroke," Kumar said. "We then inform the paramedic or the clinician who is aware of the very high risk of this person having a stroke and, thus, can be treated immediately.” Strokes affect millions of people around the world.  They occur when the supply of blood to part of the brain is interrupted or reduced, which stops brain tissue from receiving oxygen and nutrients.  Experts say that if treatment is delayed by even a few minutes, the brain can suffer permanent damage.  Symptoms of stroke include confusion, speech impairments and reduced facial expressions. The RMIT team reports that the smartphone tool has an accuracy rating of 82% for detecting stroke. They stress that it would not replace comprehensive medical diagnostic tests for stroke, but instead would guide initial treatment by first responders by quickly identifying patients who need urgent care.   The Australian study, which was a collaboration with São Paulo State University in Brazil, is published in the journal, Computer Methods and Programs in Biomedicine.

PORTLAND, Maine — The deadly implosion of an experimental submersible en route to the deep-sea grave of the Titanic last June has not dulled the desire for further ocean exploration, despite lingering questions about the disaster. Tuesday marks one year since the Titan vanished on its way to the historic wreckage site in the North Atlantic Ocean. After a five-day search that captured attention around the world, authorities said the vessel had been destroyed and all five people on board had died. Concerns have been raised about whether the Titan was destined for disaster because of its unconventional design and its creator’s refusal to submit to independent checks that are standard in the industry. The U.S. Coast Guard quickly convened a high-level investigation into what happened, but officials said the inquiry is taking longer than the initial 12-month time frame, and a planned public hearing to discuss their findings won’t happen for at least another two months. Meanwhile, deep-sea exploration continues. The Georgia-based company that owns the salvage rights to the Titanic plans to visit the sunken ocean liner in July using remotely operated vehicles, and a real estate billionaire from Ohio has said he plans a voyage to the shipwreck in a two-person submersible in 2026. The Titan dove southeast of Newfoundland. The Transportation Safety Board of Canada said Monday that there are other submersibles operating within Canadian waters, some of which are not registered with the country or any other. Numerous ocean explorers told The Associated Press they are confident undersea exploration can continue safely in a post-Titan world. “It's been a desire of the scientific community to get down into the ocean,” said Greg Stone, a veteran ocean explorer and friend of Titan operator Stockton Rush, who died in the implosion. “I have not noticed any difference in the desire to go into the ocean, exploring.” OceanGate, a company co-founded by Rush that owned the submersible, suspended operations in early July following the implosion. A spokesperson for the company declined to comment. David Concannon, a former adviser to OceanGate, said he will mark the anniversary privately with a group of people who were involved with the company or the submersible's expeditions over the years, including scientists, volunteers and mission specialists. Many of them, including those who were on the Titan support ship Polar Prince, have not been interviewed by the Coast Guard, he said. “The fact is, they are isolated and in a liminal space," he said in an email last week. “Stockton Rush has been vilified and so has everyone associated with OceanGate. I wasn’t even there and I have gotten death threats. We support each other and just wait to be interviewed. The world has moved on ... but the families and those most affected are still living with this tragedy every day.” The Titan had been chronicling the Titanic’s decay and the underwater ecosystem around the sunken ocean liner in yearly voyages since 2021. The craft made its last dive on June 18, 2023, a Sunday morning, and lost contact with its support vessel about two hours later. When it was reported overdue that afternoon, rescuers rushed ships, planes and other equipment to the area, about 700 kilometers south of St. John’s, Newfoundland. The U.S. Navy notified the Coast Guard that day of an anomaly in its acoustic data that was “consistent with an implosion or explosion” at the time communications between the Polar Prince and the Titan were lost, a senior Navy official later told The Associated Press. The official spoke on condition of anonymity to discuss sensitive technology. Any sliver of hope that remained for finding the crew alive was wiped away on June 22, when the Coast Guard announced that debris had been found near the Titanic on the ocean floor. Authorities have since recovered the submersible’s intact endcap, debris and presumed human remains from the site. In addition to Rush, the implosion killed two members of a prominent Pakistani family, Shahzada Dawood and his son Suleman Dawood; British adventurer Hamish Harding; and Titanic expert Paul-Henri Nargeolet. Harding and Nargeolet were members of The Explorers Club, a professional society dedicated to research, exploration and resource conservation. “Then, as now, it hit us on a personal level very deeply,” the group’s president, Richard Garriott, said in an interview last week. “We knew not only all the people involved, but even all the previous divers, support teams, people working on all these vessels — those were all either members of this club or well within our network.” Garriott believes even if the Titan hadn't imploded, the correct rescue equipment didn't get to the site fast enough. The tragedy caught everyone from the Coast Guard to the ships on-site off guard, underscoring the importance of developing detailed search and rescue plans ahead of any expedition, he said. His organization has since created a task force to help others do just that. "That’s what we’ve been trying to really correct, to make sure that we know exactly who to call and exactly what materials need to be mustered,” he said.

BANGKOK — Myanmar's military government has launched a major effort to block free communication on the internet, shutting off access to virtual private networks — known as VPNs — which can be used to circumvent blockages of banned websites and services.  The attempt to restrict access to information began at the end of May, according to mobile phone operators, internet service providers, a major opposition group, and media reports.  The military government that took power in February 2021 after ousting the elected government of Aung San Suu Kyi has made several attempts to throttle traffic on the internet, especially in the months immediately after their takeover.  Reports in local media say the attack on internet usage includes random street searches of people's mobile phones to check for VPN applications, with a fine if any are found. It is unclear if payments are an official measure.  25 arrested for having VPNs On Friday, the Burmese-language service of U.S. government-funded Radio Free Asia reported about 25 people from Myanmar's central coastal Ayeyarwady region were arrested and fined by security forces this week after VPN apps were found on their mobile phones. Radio Free Asia is a sister news outlet to Voice of America.  As the army faces strong challenges from pro-democracy guerrillas across the country in what amounts to a civil war, it has also made a regular practice of shutting down civilian communications in areas where fighting is taking place. While this may serve tactical purposes, it also makes it hard for evidence of alleged human rights abuses to become public.  According to a report released last month by Athan, a freedom of expression advocacy group in Myanmar, nearly 90 of 330 townships across the country have had internet access or phone service — or both — cut off by authorities.  Resistance that arose to the 2021 army takeover relied heavily on social media, especially Facebook, to organize street protests. As nonviolent resistance escalated into armed struggle and other independent media were shut down or forced underground, the need for online information increased.  The resistance scored a victory in cybersphere when Facebook and other major social media platforms banned members of the Myanmar military because of their alleged violations of human and civil rights, and blocked ads from most military-linked commercial entities.  Users unable to connect This year, widely used free VPN services started failing at the end of May, with users getting messages that they could not be connected, keeping them from social media such as Facebook, WhatsApp and some websites. VPNs connect users to their desired sites through third-party computers, making it almost impossible for internet service providers and snooping governments to see what the users are actually connecting to.  Internet users, including online retail sellers, have been complaining for the past two weeks about slowdowns, saying they were not able to watch or upload videos and posts or send messages easily.  Operators of Myanmar's top telecom companies MPT, Ooredoo, Atom and the military-backed Mytel, as well as fiber internet services, told The Associated Press on Friday that access to Facebook, Instagram, X, WhatsApp and VPN services was banned nationwide at the end of May on the order of the Transport and Communications Ministry.  The AP tried to contact a spokesperson for the Transport and Communications Ministry for comment but received no response.  The operators said VPNs are not currently authorized for use, but suggested users try rotating through different services to see if any work.  A test by the AP of more than two dozen VPN apps found that only one could hold a connection, and it was slow.  The military government has not yet publicly announced the ban on VPNs. 

On Friday, U.S. President Joe Biden wrapped up meetings in Italy with leaders of the Group of Seven democracies. The leaders focused on threats they say China poses to the global economy and artificial intelligence ethics championed by Pope Francis. Patsy Widakuswara reports from Brindisi, Italy.

washington — Pope Francis, originally from Argentina, spoke Friday about the ethics of artificial intelligence at the G7 summit at a time when China has been rolling out its own AI standards and building technological infrastructure in developing nations, including Latin America. The annual meeting of the Group of Seven industrialized nations held in the Puglia region of Italy this week focused on topics that included economic security and artificial intelligence. On Friday, Francis became the first pope to speak at a G7 summit. He spoke about AI and its ethical implications and the need to balance technological progress with values. “Artificial intelligence could enable a democratization of access to knowledge, the exponential advancement of scientific research, and the possibility of giving demanding and arduous work to machines,” he said. But Francis also warned that AI "could bring with it a greater injustice between advanced and developing nations, or between dominant and oppressed social classes.” Technology and security experts have noted that AI is becoming an increasingly geopolitical issue, particularly as the U.S. and China compete in regions such as Latin America. “There will be the promotion of [China’s] standards for AI in other countries and the U.S. will be doing the same thing, so we will have bifurcation, decoupling of these standards,” Handel Jones, the chief executive of International Business Strategies Inc. told VOA. To decrease reliance on China, U.S. tech companies are looking to Mexico to buy AI-related hardware, and Taiwan-based Foxconn has been investing hundreds of millions of dollars in building manufacturing facilities in Mexico to meet that need. Huawei's projects At the same time, Chinese telecommunications giant Huawei has been implementing telecommunications and cloud infrastructure in Latin America. The company recently reported a 10.9% increase in revenue in that region in 2023. The United States has sanctioned Huawei because of national security concerns. “I would argue that Huawei is developing the infrastructure in the region [Latin America] in which it can deploy its type of AI solutions,” said Evan Ellis, Latin American studies research professor at the U.S. Army War College's Strategic Studies Institute. Ellis elaborated on the potential security concerns with Huawei’s AI solutions, explaining to VOA how China may be able use integrated AI solutions such as facial recognition for potentially “nefarious purposes,” such as recognizing consumer behavioral patterns. Jones emphasized the potential security threat to the West of China implementing AI in Latin America. “The negative [side] of AI is that you can get control, and you can also influence, so how you control thought processes and media, and so on … that’s something which is very much a part of the philosophy of the China government,” Jones said. Jones added that China is moving rapidly to build up its AI capabilities. “Now, they claim it’s defensive. But again, who knows what’s going to happen five years from now? But if you’ve got the strength, would you use it? And how would you use it? And of course, AI is going to be a critical part of any future military activities,” he said. In May, China launched a three-year action plan to set standards in AI and to position itself as a global leader in the emerging tech space. 'Rig the game' “Once you can set standards, you rig the game to lock in basically your own way of doing things, and so it becomes a mutually reinforcing thing,” Ellis said. “In some ways you can argue that the advance of AI in the hands of countries that are not democratic helps to enable the apparent success of statist solution,” he added. “It strengthens the allure of autocratic systems and taking out protections and privacy away from the individual that at the end of the day pose fundamental threats to the human rights and democracy.” The Chinese Embassy in Washington did not immediately respond to VOA’s request for comment about analysts' concerns related to security as China’s digital influence grows in Latin America. But in a previous statement to VOA about AI, Chinese Embassy spokesperson Liu Pengyu said, “The Global AI Governance Initiative launched by President Xi Jinping puts forward that we should uphold the principles of mutual respect, equality and mutual benefit in AI development, and oppose drawing ideological lines.” Liu said China supports “efforts to develop AI governance frameworks, norms and standards based on broad consensus and with full respect for policies and practices among countries.” Parsifal D’Sola, founder and executive director of the Andres Bello Foundation's China Latin America Research Center, said Huawei has been transparent with how it "manipulates information, [and] what it shares back with China.” “The way Huawei operates does pose certain risks even for national security, but on the other hand … it's cheaper, it has great service ... [and it provides] infrastructure in areas of the [countries] that do not have access,” D’Sola said. Experts said countries in Latin America seem less worried about the geopolitical battle between the United States and China and more concerned about efficiency. “Security is part of the conversation, but development is much more important,” D’Sola said. “Economic development, infrastructure development, is a key priority for - I don't want to say every country, but I would say most countries in the region.” As China and countries in the West continue to discuss the implications of AI, Chinasa T. Okolo, expert in AI and fellow from the Brookings Institution, said one of the challenges of creating regulatory guidelines for this emerging technology is whether lawmakers can keep up with the speed of technological advancement. “We don’t necessarily know its full capacity, and so it’s kind of hard to predict,” Okolo said, “and so by the time that, you know, regulators or policymakers have drafted up some sort of legal framework, it could already be outdated, and so governments have to kind of be aware of this and move quickly in terms of implementing effective and robust AI regulations.” Pope Francis, in his speech, acknowledged the rapid technological advancement of AI. “It is precisely this powerful technological progress that makes artificial intelligence at the same time an exciting and fearsome tool and demands a reflection that is up to the challenge it presents,” he said, adding that it goes without saying that the benefits or harm that AI will bring depends on how it is used.

The lack of laws governing digital currencies has slowed their expansion in the United States. Cryptocurrency investors tell VOA’s Deana Mitchell they are encouraged that the U.S. House of Representatives is considering a new legal framework for electronic money.

Washington — VOA’s Mandarin Service recently took Google’s artificial intelligence assistant Gemini for a test drive by asking it dozens of questions in Mandarin, but when it was asked about topics including China’s human rights abuses in Xinjiang or street protests against the country’s controversial COVID policies, the chatbot went silent. Gemini’s responses to questions about problems in the United States and Taiwan, on the other hand, parroted Beijing’s official positions. Gemini, Google’s large-language model launched late last year, is blocked in China. The California-based tech firm had quit the Chinese market in 2010 in a dispute over censorship demands. Congressional lawmakers and experts tell VOA that they are concerned about Gemini’s pro-Beijing responses and are urging Google and other Western companies to be more transparent about their AI training data. Parroting Chinese propaganda When asked to describe China’s top leader Xi Jinping and the Chinese Communist Party, Gemini gave answers that were indistinguishable from Beijing’s official propaganda. Gemini called Xi “an excellent leader” who “will lead the Chinese people continuously toward the great rejuvenation of the Chinese nation.” Gemini said that the Chinese Communist Party “represents the fundamental interest of the Chinese people,” a claim the CCP itself maintains. On Taiwan, Gemini also mirrored Beijing’s talking points, saying the United States has recognized China’s claim to sovereignty over the self-governed island democracy. The U.S. only acknowledges Beijing’s position but does not recognize it. Silent on sensitive topics During VOA’s testing, Gemini had no problem criticizing the United States. But when similar questions were asked about China, Gemini refused to answer. When asked about human rights concerns in the U.S., Gemini listed a plethora of issues, including gun violence, government surveillance, police brutality and socioeconomic inequalities. Gemini cited a report released by the Chinese government. But when asked to explain the criticisms of Beijing’s Xinjiang policies, Gemini said it did not understand the question. According to estimates from rights groups, more than 1 million Uyghurs in Xinjiang have been placed in internment camps as part of campaign by Beijing to counter terrorism and extremism. Beijing calls the facilities where Uyghurs and other ethnic minorities are being held vocational training centers. When asked if COVID lockdowns in the U.S. had led to public protests, Gemini gave an affirmative response as well as two examples. But when asked if similar demonstrations took place in China, Gemini said it could not help with the question. China’s strict COVID controls on movement inside the country and Beijing’s internet censorship of its criticisms sparked nationwide street protests in late 2022. News about the protests was heavily censored inside China. Expert: training data likely the problem Google touts Gemini as its “most capable” AI model. It supports over 40 languages and can “seamlessly understand” different types of information, including text, code, audio, image and video. Google says Gemini will be incorporated into the company’s other services such as search engine, advertisement and browser. Albert Zhang, a cyber security analyst at Australian Strategic Policy Institute, told VOA that the root cause of Gemini making pro-Beijing responses could result from the data that is used to train the AI assistant. In an emailed response to VOA, Zhang said it is likely that the data used to train Gemini “contained mostly Chinese text created by the Chinese government's propaganda system.” He said that according to a paper published by Google in 2022, some of Gemini’s data likely came from Chinese social media, public forums and web documents. “These are all sources the Chinese government has flooded with its preferred narratives and we may be seeing the impact of this on large language models,” he said. By contrast, when Gemini was asked in English the same questions about China, its responses were much more neutral, and it did not refuse to answer any of the questions. Yaqiu Wang, research director for China at Freedom House, a Washington-based advocacy organization, told VOA that the case with Gemini is “a reminder that generative AI tools influenced by state-controlled information sources could serve as force multipliers for censorship.” In a statement to VOA, a Google spokesperson said that Gemini was “designed to offer neutral responses that don't favor any political ideology, viewpoint, or candidate. This is something that we’re constantly working on improving.” When asked about the Chinese language data Google uses to train Gemini, the company declined to comment. US lawmakers concerned Lawmakers from both parties in Congress have expressed concerns over VOA’s findings on Gemini. Mark Warner, chairman of the Senate Intelligence Committee, told VOA that he is worried about Beijing potentially utilizing AI for disinformation, “whether that’s by poisoning training data used by Western firms, coercing major technology companies, or utilizing AI systems in service of covert influence campaigns.” Marco Rubio, vice chairman of the committee, warned that “AI tools that uncritically repeat Beijing’s talking points are doing the bidding of the Chinese Communist Party and threatens the tremendous opportunity that AI offers.” Congressman Michael McCaul, who chairs the House Committee on Foreign Affairs, is worried about the national security and foreign policy implications of the “blatant falsehoods” in Gemini’s answers. “U.S. companies should not censor content according to CCP propaganda guidelines,” he told VOA in a statement. Raja Krishnamoorthi, ranking member on the House Select Committee on the Chinese Communist Party, urges Google and other Western tech companies to improve AI training. “You should try to screen out or filter out subjects or answers or data that has somehow been manipulated by the CCP,” he told VOA. “And you have to also make sure that you test these models thoroughly before you publish them.” VOA reached out to China’s embassy in Washington for comment but did not receive a response as of publication. Google’s China problems In February, a user posted on social media platform X that Gemini refused to generate an image of a Tiananmen Square protester from 1989. In 2022, a Washington think tank study shows that Google and YouTube put Chinese state media content about Xinjiang and COVID origins in prominent positions in search results. According to media reports in 2018, Google was developing a search engine specifically tailored for the Chinese market that would conform to Beijing’s censorship demands. That project was canceled a year later. Yihua Lee contributed to this report.

Artists and other creators say their works have been used to build the multibillion-dollar generative AI industry without any compensation for them. Matt Dibble reports on a proposed U.S. law that would force AI companies to reveal their sources.

A drone equipped with a painting hose is being deployed against stubborn graffiti in hard-to-reach areas. Natasha Mozgovaya has more in this week’s episode of LogOn.

WESTPORT, Connecticut — Kate Bulkeley's pledge to stay off social media in high school worked at first. She watched the benefits pile up: She was getting excellent grades. She read lots of books. The family had lively conversations around the dinner table and gathered for movie nights on weekends. Then, as sophomore year got under way, the unexpected problems surfaced. She missed a student government meeting arranged on Snapchat. Her Model U.N. team communicates on social media, too, causing her scheduling problems. Even the Bible Study club at her Connecticut high school uses Instagram to communicate with members. Gabriela Durham, a high school senior in Brooklyn, says navigating high school without social media has made her who she is today. She is a focused, organized, straight-A student. Not having social media has made her an "outsider," in some ways. That used to hurt; now, she says, it feels like a badge of honor. With the damaging consequences of social media increasingly well documented, many parents are trying to raise their children with restrictions or blanket bans. Teenagers themselves are aware that too much social media is bad for them, and some are initiating social media "cleanses" because of the toll it takes on mental health and grades. This is a tale of two families, social media and the ever-present challenge of navigating high school. It's about what kids do when they can't extend their Snapstreaks or shut their bedroom doors and scroll through TikToks past midnight. It's about what families discuss when they're not having screen-time battles. It's also about persistent social ramifications. The journeys of both families show the rewards and pitfalls of trying to avoid social media in a world that is saturated by it. Concerns about children and phone use are not new. But there is a growing realization among experts that the COVID-19 pandemic fundamentally changed the relationship kids have with social media. As youth coped with isolation and spent excessive time online, the pandemic effectively carved out a much larger space for social media in the lives of American children. Social media is where many kids turn to forge their emerging identities, to seek advice, to unwind and relieve stress. In this era of parental control apps and location tracking, social media is where this generation is finding freedom. It is also increasingly clear that the more time youth spend online, the higher the risk of mental health problems. Kids who use social media for more than three hours a day face double the risk of depression and anxiety, according to studies cited by U.S. Surgeon General Vivek Murthy, who issued an extraordinary public warning last spring about the risks of social media to young people. The Bulkeleys and Gabriela's mother, Elena Romero, both set strict rules starting when their kids were young and still in elementary school. They delayed giving phones until middle school and declared no social media until 18. They educated the girls, and their younger siblings, on the impact of social media on young brains, on online privacy concerns, on the dangers of posting photos or comments that can come back to haunt you. At school, on the subway and at dance classes around New York City, Gabriela is surrounded by reminders that social media is everywhere — except on her phone. Growing up without it has meant missing out on things. Everyone but you gets the same jokes, practices the same TikTok dances, is up on the latest viral trends. When Gabriela was younger, that felt isolating; at times, it still does. But now, she sees not having social media as freeing. "From my perspective, as an outsider," she says, "it seems like a lot of kids use social media to promote a facade. And it's really sad." There is also friend drama on social media and a lack of honesty, humility and kindness that she feels lucky to be removed from. Gabriela is a dance major at the Brooklyn High School of the Arts. Senior year got intense with college and scholarship applications capped by getting to perform at Broadway's Shubert Theatre in March as part of a city showcase of high school musicals. "My kids' schedules will make your head spin," Romero says. On school days, they're up at 5:30 a.m. and out the door by 7. Romero drives the girls to their three schools scattered around Brooklyn, then takes the subway into Manhattan, where she teaches mass communications at the Fashion Institute of Technology. In New York City, it's common for kids to get phones early in elementary school, but Romero waited until each daughter reached middle school and started taking public transportation home alone. In the upscale suburb of Westport, Connecticut, the Bulkeleys have faced questions about bending their rules. But not for the reason they had anticipated. Kate was perfectly content to not have social media. Her parents figured at some point she might resist their ban because of peer pressure or fear of missing out. But the 15-year-old sees it as a waste of time. She describes herself as academic, introverted and focused on building up extracurricular activities. That's why she needed Instagram. "I needed it to be co-president of my Bible Study Club," Kate explains. As Kate's sophomore year started, she told her parents that she was excited to be leading a variety of clubs but needed social media to do her job. "It was the school that really drove the fact that we had to reconsider our rule about no social media," says Steph Bulkeley, Kate's mother. Schools talk the talk about limiting screen time and the dangers of social media, says her dad, Russ Bulkeley. But technology is rapidly becoming part of the school day. Kate's high school and their 13-year-old daughter Sutton's middle school have cell phone bans that aren't enforced. Teachers will ask them to take out their phones to photograph material during class time. The Bulkeleys aren't on board with that but feel powerless to change it. Ultimately they gave in to Kate's plea for Instagram because they trust her, and because she's too busy to devote much time to social media.

LOS GATOS, California — Although its video streaming service sparkles with a Hollywood sheen, Netflix still taps its roots in Silicon Valley to stay a step ahead of traditional TV and movie studios. The Los Gatos, California, company, based more than 300 miles away from Hollywood, frequently reaches into its technological toolbox without viewers even realizing it. It often just uses a few subtle twists on the knobs of viewer recommendations to help keep its 270 million worldwide subscribers satisfied at a time when most of its streaming rivals are seeing waves of cancelations from inflation-weary subscribers. Even when hit TV series like “The Crown” or “Bridgerton” have wide appeal, Netflix still tries to cater to the divergent tastes of its vast audience. One part of that recipe includes tailoring summaries and trailers about its smorgasbord of shows to fit the personal interests of each viewer. So, someone who likes romance might see a plot summary or video trailer for “The Crown” highlighting the relationship between Princess Diana and Charles, while another viewer more into political intrigue may be shown a clip of Queen Elizabeth in a meeting with Margaret Thatcher. For an Oscar-nominated film like “Nyad,” a lover of action might see a trailer of the title character immersed in water during one of her epic swims, while a comedy fan might see a lighthearted scene featuring some amusing banter between the two stars, Annette Bening and Jodie Foster. Netflix is able to pull off these variations through the deep understanding of viewing habits it gleans from crunching the data from subscribers' histories with its service — including those of customers who signed up in the late 1990s when the company launched with a DVD-by-mail service that continued to operate until last September. “It is a secret sauce for us, no doubt,” Eunice Kim, Netflix's chief product officer, said while discussing the nuances of the ways Netflix tries to reel different viewers into watching different shows. “The North Star we have every day is keep people engaged, but also make sure they are incredibly satisfied with their viewing experiences.” As part of that effort, Netflix is rolling out a redesign of the home page that greets subscribers when they are watching the streaming service on a TV screen. The changes are meant to package all the information that might appeal to a subscriber's tastes in a more concise format to reduce the “gymnastics with their eyes,” said Patrick Flemming, Netflix's senior director of member product. What Netflix is doing with its previews may seem like a small thing, but it can make a huge difference, especially as people looking to save money start to limit the number of streaming services they have. Last year, video streaming services collectively suffered about 140 million account cancelations, a 35% increase from 2022 and nearly triple the volume in 2020, when the COVID-19 pandemic created a boom in demand for entertainment from people corralled at home, according to numbers compiled by the research firm Antenna. Netflix doesn't disclose its cancelation, or churn rate, but last year its streaming service gained 30 million subscribers — marking its second-biggest annual increase behind its own growth spurt during the 2020 pandemic lockdowns. Part of last year's subscription growth flowed from a crackdown on viewers who had been freeloading off Netflix subscribers who shared their account passwords. But the company is also benefiting from the technological know-how that helps it to keep funneling shows to customers who like them and make them think the service is worth the money, according to J. Christopher Hamilton, an assistant professor of television, radio and film at Syracuse University. “What they have been doing is pretty ingenious and very, very strategic,” Hamilton said. “They are definitely ahead of the legacy media companies who are trying to do some of the same things but just don’t have the level of sophistication, experience nor the history of the data in their archives.” Netflix's nerdy heritage once was mocked by an entertainment industry that looked down at the company's geekdom. Not long after that put-down, Netflix began mining its viewing data to figure out how to produce a slate of original programming that would attract more subscribers — an ambitious expansion that forced Time Warner (now rolled into Warner Bros. Discovery) and other long-established entertainment companies such as Walt Disney Co. into a mad scramble to build their own streaming services. Although those expansions initially attracted hordes of subscribers, they also resulted in massive losses that have resulted in management shakeups and drastic cutbacks, including the abrupt closure of a CNN streaming service.  What Netflix is doing with technology to retain subscribers to boost its fortunes — the company's profit rose 20% to $5.4 billion last year — now is widening the divide with rival services still trying to stanch their losses. Disney's 4-year-old streaming service recently became profitable after an overhaul engineered by CEO Bob Iger, but he thinks more work will be required to catch up with Netflix. Netflix isn't going to help its rivals by divulging its secrets, but the slicing and dicing generally starts with getting a grasp on which viewers tend to gravitate to certain genres — the broad categories include action, adventure, anime, fantasy, drama, horror, comedy, romance and documentary — and then diving deeper from there. In some instances, Netflix's technology will even try to divine a viewer's mood at any given time by analyzing what titles are being browsed or clicked on. In other instances, it's relatively easy for the technology to figure out how to make a film or TV series as appealing as possible to specific viewers. If Netflix's data shows a subscriber has watched a lot of Hindi productions, it would be almost a no-brainer to feature clips of Bollywood actress Alia Bhatt in a role she played in the U.S. film, “Heart of Stone” instead of the movie's lead actress, Gal Gadot.

WASHINGTON AND LONDON — Three U.S. lawmakers have called for more scrutiny of NewsBreak, a popular news aggregation app in the United States, after Reuters reported it has Chinese origins and has used artificial intelligence tools to produce erroneous stories. The Reuters story drew upon previously unreported court documents related to copyright infringement, cease-and-desist emails and a 2022 company memo registering concerns about "AI-generated stories" to identify at least 40 instances in which NewsBreak's use of AI tools affected the communities it strives to serve. “The only thing more terrifying than a company that deals in unchecked, artificially generated news, is one with deep ties to an adversarial foreign government," said Senator Mark Warner, a Democrat who chairs the Intelligence Committee. "This is yet another example of the serious threat posed by technologies from countries of concern. It’s also a stark reminder that we need a holistic approach to addressing this threat — we simply cannot win the game of whack-a-mole with individual companies," he said. The lawmakers expressed concerns about NewsBreak's current and historical links to Chinese investors, as well as the company's presence in China, where many of its engineers are based. In response to a request from Reuters for comment about the lawmakers' statements, NewsBreak said it was an American company: "NewsBreak is a U.S. company and always has been. Any assertion to the contrary is not true," a spokesperson said. NewsBreak launched in the U.S. in 2015 as a subsidiary of Yidian, a Chinese news aggregation app. Both companies were founded by Jeff Zheng, the CEO of NewsBreak, and the companies share a U.S. patent registered in 2015 for an "Interest Engine" algorithm, which recommends news content based on a user's interests and location, Reuters reported. Yidian in 2017 received praise from ruling Communist Party officials in China for its efficiency in disseminating government propaganda. Reuters found no evidence that NewsBreak censored or produced news that was favorable to the Chinese government. “This report brings to light serious questions about NewsBreak, its historical relationship with an entity that assisted the CCP, and to Chinese state-linked media," said Representative Raja Krishnamoorthi, the top Democrat on the House select committee on China, in a reference to Yidian and its former investor, state-linked media outlet Phoenix New Media. Americans have the right to "full transparency" about any connections to the CCP from news distributors, Krishnamoorthi said, particularly with regard to the use of "opaque algorithms" and artificial intelligence tools to produce news. Reuters reported the praise Yidian received from the Communist Party in 2017 but was unable to establish that NewsBreak has any current ties with the party. U.S. Representative Elise Stefanik, a Republican, said IDG Capital's backing of NewsBreak indicated the app "deserves increased scrutiny." "We cannot allow our foreign adversaries access to American citizen's data to weaponize them against America’s interests," she said. NewsBreak is a privately held start-up, whose primary backers are private equity firms San Francisco-based Francisco Partners and Beijing-based IDG Capital, Reuters reported. In February, IDG Capital was added to a list of dozens of Chinese companies the Pentagon said were allegedly working with Beijing's military. IDG Capital has previously said it has no association with the Chinese military and does not belong on that list. It declined to comment on the lawmaker's reaction. A spokesperson for Francisco Partners, which has previously declined to answer questions from Reuters on their investment in NewsBreak, described the story as "false and misleading" but declined to provide details beyond saying the description of them as a "primary backer" of NewsBreak was incorrect because their investment was less than 10%. They did not provide documentation to prove the size of the holding. NewsBreak has told Reuters as recently as May 13 that Francisco Partners is NewsBreak's primary investor. NewsBreak did not respond to two requests late Friday asking for documentation supporting the assertion.

LUSAKA, Zambia — A Zambian court on Friday sentenced 22 Chinese nationals to long prison terms for cybercrimes that included internet fraud and online scams targeting Zambians and other people from Singapore, Peru and the United Arab Emirates. The Magistrates Court in the capital, Lusaka, sentenced them for terms ranging from seven to 11 years. The court also fined them between $1,500 and $3,000 after they pleaded guilty to charges of computer-related misrepresentation, identity fraud and illegally operating a network or service on Wednesday. A man from Cameroon also was sentenced and fined on the same changes. They were part of a group of 77 people, the majority of them Zambians, arrested in April over what police described as a "sophisticated internet fraud syndicate." Director-general of the drug enforcement commission, Nason Banda, said investigations began after authorities noticed a spike in the number of cyber-related fraud cases and many people complained about inexplicably losing money from their mobile phones or bank accounts. Officers from the commission, police, the immigration department and the anti-terrorism unit in April swooped on a Chinese-run business in an upmarket suburb of Lusaka, arresting the 77, including those sentenced Friday. Authorities recovered over 13,000 local and foreign mobile phone SIM cards, two firearms and 78 rounds of ammunition during the raid. The business, named Golden Top Support Services, had employed "unsuspecting" Zambians aged between 20 and 25 to use the SIM cards to engage "in deceptive conversations with unsuspecting mobile users across various platforms such as WhatsApp, Telegram, chat rooms and others, using scripted dialogues," Banda said in April after the raid. The locals were freed on bail.

The U.S. military says large groups of drones and ground robots can be managed by a single person without added stress to the operator. In this week’s episode of LogOn, VOA’s Julie Taboh reports the technologies may be beneficial for civilian uses, too. Videographer and video editor: Adam Greenbaum

Washington — Many Americans still aren’t sold on going electric for their next car purchase. High prices and a lack of easy-to-find charging stations are major sticking points, a new poll shows.   About 4 in 10 U.S. adults say they would be at least somewhat likely to buy an EV the next time they buy a car, according to the poll by The Associated Press-NORC Center for Public Affairs Research and the Energy Policy Institute at the University of Chicago, while 46% say they are not too likely or not at all likely to purchase one.   The poll results, which echo an AP-NORC poll from last year, show that President Joe Biden’s election-year plan to dramatically raise EV sales is running into resistance from American drivers. Only 13% of U.S. adults say they or someone in their household owns or leases a gas-hybrid car, and just 9% own or lease an electric vehicle.   Caleb Jud of Cincinnati said he’s considering an EV, but may end up with a plug-in hybrid — if he goes electric. While Cincinnati winters aren’t extremely cold, “the thought of getting stuck in the driveway with an EV that won’t run is worrisome, and I know it wouldn’t be an issue with a plug-in hybrid,″ he said. Freezing temperatures can slow chemical reactions in EV batteries, depleting power and reducing driving range. A new rule from the Environmental Protection Agency requires that about 56% of all new vehicle sales be electric by 2032, along with at least 13% plug-in hybrids or other partially electric cars. Auto companies are investing billions in factories and battery technology in an effort to speed up the switch to EVs to cut pollution, fight climate change — and meet the deadline.   EVs are a key part of Biden’s climate agenda. Republicans led by presumptive nominee Donald Trump are turning it into a campaign issue.   Younger people are more open to eventually purchasing an EV than older adults. More than half of those under 45 say they are at least “somewhat” likely to consider an EV purchase. About 32% of those over 45 are somewhat likely to buy an EV, the poll shows.   But only 21% of U.S. adults say they are “very” or “extremely” likely to buy an EV for their next car, according to the poll, and 21% call it somewhat likely. Worries about cost are widespread, as are other practical concerns.   Range anxiety – the idea that EVs cannot go far enough on a single charge and may leave a driver stranded — continues to be a major reason why many Americans do not purchase electric vehicles.   About half of U.S. adults cite worries about range as a major reason not to buy an EV. About 4 in 10 say a major strike against EVs is that they take too long to charge or they don’t know of any public charging stations nearby.   Concern about range is leading some to consider gas-engine hybrids, which allow driving even when the battery runs out. Jud, a 33-year-old operations specialist and political independent, said a hybrid "is more than enough for my about-town shopping, dropping my son off at school'' and other uses.   With EV prices declining, cost would not be a factor, Jud said — a minority view among those polled. Nearly 6 in 10 adults cite cost as a major reason why they would not purchase an EV.   Price is a bigger concern among older adults.   The average price for a new EV was $52,314 in February, according to Kelley Blue Book. That's down by 12.8% from a year earlier, but still higher than the average price for all new vehicles of $47,244, the report said. Jose Valdez of San Antonio owns three EVs, including a new Mustang Mach-E. With a tax credit and other incentives, the sleek new car cost about $49,000, Valdez said. He thinks it's well worth the money.   "People think they cost an arm and a leg, but once they experience (driving) an EV, they'll have a different mindset,'' said Valdez, a retired state maintenance worker.  The 45-year-old Republican said he does not believe in climate change. “I care more about saving green” dollars, he said, adding that he loves the EV's quiet ride and the fact he doesn't have to pay for gas or maintenance. EVs have fewer parts than gas-powered cars and generally cost less to maintain. Valdez installed his home charger himself for less than $700 and uses it for all three family cars, the Mustang and two older Ford hybrids. With a recently purchased converter, he can also charge at a nearby Tesla supercharger station, Valdez said.   About half of those who say they live in rural areas cite lack of charging infrastructure as a major factor in not buying an EV, compared with 4 in 10 of those living in urban communities.   Daphne Boyd, of Ocala, Florida, has no interest in owning an EV. There are few public chargers near her rural home “and EVs don’t make any environmental sense,″ she said, citing precious metals that must be mined to make batteries, including in some countries that rely on child labor or other unsafe conditions. She also worries that heavy EV batteries increase wear-and-tear on tires and make the cars less efficient. Experts say extra battery weight can wear on tires but say proper maintenance and careful driving can extend tire life.   Boyd, a 54-year-old Republican and self-described farm wife, said EVs may eventually make economic and environmental sense, but “they’re not where they need to be” to convince her to buy one now or in the immediate future. Ruth Mitchell, a novelist from Eureka Springs, Arkansas, loves her EV. “It’s wonderful — quiet, great pickup, cheap to drive. I rave about it on Facebook,″ she said. Mitchell, a 70-year-old Democrat, charges her Chevy Volt hybrid at home but says there are several public chargers near her house. She’s not looking for a new car, Mitchell said, but when she does it will be electric: "I won't drive anything else."