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☆ Your showerhead and toothbrush are teeming with viruses. But don’t panic – these microbes could save lives
▼ + stars: | 2024-10-09 | by ( Issy Ronald | ) edition.cnn.com time to read: +5 min

These viruses, however, are not the kind that will give you the common cold or flu (or worse). It’s amazing how much untapped biodiversity is all around us.”The study identified more than 600 viruses found in the samples taken from showerheads and toothbrushes. And for every bacterium, there’s potentially tens or hundreds or even thousands of viruses that infect it,” Hartmann said, noting that viruses mutate very quickly, too. She hypothesized that a bacterium in your mouth could transfer to your toothbrush, taking its viruses with it – and these could keep evolving on the toothbrush. “Microbes are everywhere all the time … We wouldn’t be able to digest our food or fend off infection if we didn’t have our microbes,” Hartmann said.

Persons: Erica Hartmann, we’ve, ” Hartmann, Bacteriophages, “ There’s, ”, Joe Parker, wasn’t, Hartmann, Parker, toothbrushes, There’s, that’s Organizations: CNN, Northwestern University’s McCormick School of Engineering, Getty, World Health Organization, Innovation Locations: showerheads, Microbiomes, United States, ”

☆ A Gen Z Stanford graduate who left an engineering job to pursue filmmaking was surprised by the overlap in industries
▼ + stars: | 2024-09-07 | by ( Erin Snodgrass | ) www.businessinsider.com time to read: +4 min

But soon after graduating, McRuer made an unlikely early-career pivot, ditching his dependable product design job to pursue his passion for film. The 2019 graduate studied product design at Stanford's School of Engineering. The internship quickly evolved into a full-time product design position. He initially thought he could get his filmmaking fix via a hobby that played second fiddle to his engineering work. But McRuer said he was ultimately surprised by the overlaps he's seen working in both engineering and film — particularly when producing.

Persons: —, Jason McRuer, McRuer, I'm Organizations: Service, Business, Stanford's School of Engineering, Sundance Film, Global Health Labs, City of Locations: LA, City, City of Angels, Coast, Brooklyn

☆ China rocket launch creates cloud of space debris in low-Earth orbit
▼ + stars: | 2024-08-09 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

CNN —One of China’s Long March 6A rockets has broken apart in low-Earth orbit and created a debris cloud consisting of hundreds of pieces, according to multiple space debris-tracking entities. And the reason for the rocket breakup remains unknown. Everything in low-Earth orbit travels at 17,500 miles per hour, Crassidis said. It’s the second time one of these rocket bodies has experienced a significant breakup event in low-Earth orbit, according to Victoria Heath, associate director of marketing and communications for LeoLabs. “Events like this highlight the importance of adherence to existing space debris mitigation guidelines to reduce the creation of new space debris and underscore the need for robust space domain awareness capabilities to rapidly detect, track, and catalog newly-launched space objects so they can be screened for potential conjunctions.”

Persons: China’s, SpaceX’s, “ USSPACECOM, ”, Rob Margetta, LeoLabs, John L, Crassidis, “, It’s, Victoria Heath, Audrey Schaffer Organizations: CNN, Taiyuan Satellite, Shanghai Spacecom, Satellite Technology, Space Command, US Department of Defense, NASA, International, Network, University, Buffalo’s School of Engineering, Applied Sciences, LeoLabs, Aerospace Locations: Taiyuan, Shanghai, Victoria

☆ OpenAI's CTO says AI tools can 'expand our intelligence,' but may cause some creative jobs to disappear
▼ + stars: | 2024-06-26 | by ( Cheyenne Devon | ) www.cnbc.com time to read: +1 min

OpenAI's chief technology officer Mira Murati says AI may help expand humans' creativity — but the technology could wipe out some creative jobs as well. On June 19, Dartmouth College's school of engineering held a discussion with Murati about the potential effects OpenAI's tools, such as ChatGPT, may have on different industries. OpenAI's tools will "lower the barrier for anyone to think of themselves as creative," she added. However, she also said AI tools could have a potentially disruptive impact on creative industries. "Some creative jobs maybe will go away, but maybe they shouldn't have been there in the first place if the content that comes out of it is not very high quality," she said.

Persons: Mira Murati Organizations: Dartmouth

☆ Scientists a step closer to unraveling mystery of sun’s magnetic field
▼ + stars: | 2024-05-22 | by ( Katie Hunt | ) edition.cnn.com time to read: +5 min

In contrast to previous research that assumed the sun’s magnetic field originates from deep within the celestial body, they suspect the the source is much closer to the surface. This view of the sun's magnetic field was generated by NASA's Solar Dynamics Observatory. NASA/GSFC/Solar Dynamics ObservaModeling the sun’s magnetic fieldIt’s difficult to see the sun’s magnetic field lines, which loop through the solar atmosphere to form a complicated web of magnetic structures far more complex than Earth’s magnetic field. To better grasp how the sun’s magnetic field works, scientists turn to mathematical models. Like the 11-year solar magnetic cycle, torsional oscillations also experience an 11-year cycle.

Persons: Galileo, ”, Daniel Lecoanet, ” Lecoanet, “, Lecoanet, Geoff Vasil, Ellen Zweibel, Zweibel Organizations: CNN, Northwestern University’s McCormick School of Engineering, Center for Interdisciplinary Exploration, Research, Astrophysics, NASA's Solar Dynamics, NASA, Dynamics, University of Edinburgh, University of Wisconsin Locations: United Kingdom, Madison

☆ A young Duke professor won $250,000 for her algorithms that could find symptoms of heart disease when they start
▼ + stars: | 2024-05-01 | by ( Jenny Mcgrath | ) www.businessinsider.com time to read: +6 min

Amanda Randles creates virtual simulations that incorporate data from patients' wearable devices. To that end, Randles, a professor of biomedical sciences at Duke University's Pratt School of Engineering, spends her time building some of those virtual simulations. Tracking cancer cellsWhen cancer cells circulate through the bloodstream, they can sometimes acclimate in a different part of the body and form new tumors, which is known as metastasis. In her simulations, Randles changes different parameters, like how the size of the cell's nucleus affects its movement. Advertisement"What is it about the cancer cells that are making them more likely to go to the brain or to the breast," she said.

Persons: Amanda Randles, —, Randles, Salil Parekh, It's Organizations: Duke University, Computing, Service, Business, Duke University's Pratt School of Engineering, Association for Computing, Infosys, Apple Watch

☆ Space garbage hits Florida home, NASA confirms
▼ + stars: | 2024-04-16 | by ( Jackie Wattles | ) edition.cnn.com time to read: +5 min

CNN —A piece of garbage jettisoned from the International Space Station unexpectedly survived a fiery reentry from orbit last month and pierced the roof of a home in Florida, according to NASA. Garbage disposal in spaceNASA routinely brings home batches of science experiments, cargo and garbage from the space station using capsules such as the Dragon spacecraft built by SpaceX. But after the installation of new batteries on the space station in 2021, authorities disposed of a pallet of aging nickel-hydrogen batteries in a different way. But the debris that struck Otero’s house was the result of miscalculations about how space garbage would behave. The space agency should be more conservative in its analysis if it attempts a similar trash disposal method in the future, he added.

Persons: ” Alejandro Otero, Otero, ” Otero, “ I’m, Otero’s, John Crassidis, ” Crassidis Organizations: CNN, International, NASA, WINK News, Kennedy Space Center, SpaceX, European Space Agency, ESA, China National Space Administration, University, Buffalo’s School of Engineering, Applied Locations: Florida, Naples , Florida, China

Six people are presumed dead and two have been rescued from the Patapsco River, according to The New York Times. What Happened to Baltimore’s Francis Scott Key Bridge? Around 1:30 a.m. on Tuesday, a Singapore-flagged cargo ship called Dali struck a column of the bridge, according to reporting by The Baltimore Banner. Where Is the Francis Scott Key Bridge and How Long Is It? The Francis Scott Key Bridge was assessed as being in “fair” condition in 2023, according to the Federal Highway Administration’s National Bridge Inventory.

Persons: Baltimore’s Francis Scott Key, Wes Moore, Dali, Maryland Sen, Chris Van Hollen, Francis Scott Key, Helen Delich Bentley, Banner ”, Baltimore Mayor Brandon Scott, Moore, ”, Joe Biden, We're, “, Pete Buttigieg, Scott, Buttigieg, Joseph Schofer Organizations: The New York Times, Maryland Gov, Biden Administration, White, Baltimore Sun, Baltimore Banner, ABC News, Maryland, New York Times, Times, ” Synergy Marine Group, Baltimore Mayor, Transportation, Department of, World Association, Transport Infrastructure, U.S . News, Northwestern University’s McCormick School of Engineering, ” Engineers Locations: Patapsco, Maryland’s, Singapore, Sri Lanka, Maryland, Baltimore, Helen Delich Bentley Port of Baltimore, Fort McHenry, El Salvador, Guatemala, Honduras, Mexico, U.S

☆ How to use AI as a career tool to get a promotion at work faster
▼ + stars: | 2024-01-24 | by ( Rachel Curry | ) www.cnbc.com time to read: +5 min

According to a McKinsey report from 2022 based on a decade of data, role transitions are inherent in labor markets. The generative AI platform dubs itself a "tutor for learners" and an "assistant for teachers." Meanwhile, nonprofit organization All Star Code had a scholar visualize themselves progressing in their tech career over the next decade by creating a 30-second video using generative AI platform Runway. There lies the ultimate caveat in AI-enabled career transitions. Panetta feels like the human role in hiring — regardless of the qualifications of candidates — will play a potentially bigger role in career transitions.

Persons: Yee, Lareina Yee, Karen Panetta, That's, Panetta, Sal Khan, Bill Gates, Khan, —, Bias, doesn't Organizations: McKinsey, Strategic, Institute of Electrical, Electronics Engineering, Tufts School of Engineering, Khan Academy, OpenAI Locations: America

☆ Spent coffee grounds could make concrete stronger
▼ + stars: | 2023-11-20 | by ( Jacopo Prisco | ) edition.cnn.com time to read: +5 min

CNN —If your morning can’t start without coffee, you’re not alone: globally, we drink over 2 billion cups of coffee each day, leading to 60 million tons of wet, spent coffee grounds every year. There, like other organic compounds, coffee grounds decompose and release methane, a greenhouse gas 25 times more powerful than carbon dioxide at trapping heat. Now, researchers say coffee grounds could be used as an ingredient in concrete, and they could even make it stronger, according to a recent study. When the biochar is mixed with concrete, Roychand says, its particles act like tiny water reservoirs, distributed throughout the concrete. Roychad points out that waste collection is already mainstream, and that a number of companies in Australia are focusing on recycling coffee waste.

Persons: you’re, ”, Rajeev Roychand, Mohammad Saberian, Shannon Kilmartin, Lynch, Jordan Carter, Carelle Mulawa, “, Kypros, Roychand Organizations: CNN, School of Engineering, RMIT University, University of Sheffield Locations: Melbourne, Australia

☆ Fact Check: No Gates-sponsored mRNA ‘air vaccine’ approved for use in people
▼ + stars: | 2023-10-19 | by ( Reuters Fact Check | ) www.reuters.com time to read: +3 min

The technique has not been approved for any use or testing in humans, according to the study’s senior author. However, a headline that reads, “Bill Gates mRNA 'Air Vaccine' Approved for Use Against Non-Consenting Humans” is circulating in the form of a screenshot on Facebook and messaging platform X, formerly known as Twitter. The formulation developed by the Yale team has neither been approved for human trial nor is it awaiting approval, Saltzman added. The Bill and Melinda Gates Foundation website, which documents Gates’ vaccine development work and investments, makes no mention of the Yale research. A nasal mRNA vaccine tested in mice by Yale researchers has not been approved for human testing, was not funded by Bill Gates and is not designed to work through the “air.”This article was produced by the Reuters Fact Check team.

Persons: Bill Gates, ”, Mark Saltzman, Saltzman, ” Saltzman, Gates, Melinda Gates, Read Organizations: Yale University, Reuters, Vaccine, Twitter, Goizueta, Biomedical Engineering, Yale’s School of Engineering, Applied Science, Yale, Melinda Gates Foundation, National Library of Medicine, National Institutes of Health, Howard Hughes Medical Institute, Thomson

☆ Opinion: Why we’re seeing so many deadly floods
▼ + stars: | 2023-09-21 | by ( Jessica Chia | Opinion Adam H. Sobel | ) edition.cnn.com time to read: +6 min

Is this climate change, or just a particularly severe bunch of weather flukes happening in close succession due to the climate’s own natural variability? But climate change acts by loading the dice on many types of weather events. That shouldn’t be comforting; climate change could be playing a larger role than we expect in many of these events. Even without climate change, it would behoove us to catch up on their maintenance, or, where these dams are no longer truly needed, remove them. What we know about climate change and extreme weather should strengthen that motivation; what we don’t know should strengthen it even more.

Persons: Adam H, Sobel, Columbia University’s Lamont, Adam Sobel Danny Goldfield, Daniel, it’s, El Niño, El Niños, El Organizations: Columbia, Fu Foundation School of Engineering, Applied, Twitter, CNN, Humanitarian Affairs, El Locations: Massachusetts, Hong Kong, Greece, Spain, Libya, El, Europe

☆ Opinion: Here are the jobs AI will impact most
▼ + stars: | 2023-09-05 | by ( Bethany Cianciolo | Jessica Chia | ) edition.cnn.com time to read: +42 min

Dan’s research and teaching focus is on using AI for legal services and the regulation of AI in society. For instance, we can develop AI tools to help individuals understand their responsibilities and rights, and preserve and enforce those rights. People in businesses, large and small, are already using chatbots, AI assistants and other AI tools to help them comply with laws, regulations and internal policies. Additionally, new roles are emerging in the legal industry, such as legal engineers who build systems, legal data scientists and legal operations professionals. AI tools will then quickly re-optimize decisions associated with inventory shipments, staffing and promotions.

Persons: ” That’s, Dropbox, Goldman Sachs, isn’t, Erich S, Huang, ” Erich S, Huang I’ve, Regina Barzilay, Barzilay, Geoffrey Hinton, radiologists, —, ’, Daniel W, Linna, Dan, …, ” Daniel W, Refik, Anadol, ”, Adam Elmachtoub, Nisreen, Theodore Kim, don’t, ” Theodore Kim Moreover, Janis Joplin, Jackie Jormp, We’re, Baz Luhrmann’s “, Gatsby, That’s, Leonardo DiCaprio, mockbusters, Eirini, GitHub Copilot, Ashok Goel, Jill Watson, ” Ashok Goel, Kristen DiCerbo, Alireza, Davis Organizations: CNN, CNET, International Association of Machinists, Aerospace Workers, Informatics, Verily, Duke Health, Biomedical Informatics, Duke University School of Medicine, Adobe, Apple, Electrical Engineering, Computer Science Department, MIT, Jameel Clinic, Machine Learning, MacArthur, National Academy of Engineering, American Academy of Arts and Sciences, Northwestern’s Pritzker School of Law, McCormick School of Engineering, Northwestern University’s CS, Center, Better Housing, UCLA’s Department of Design Media Arts, The Museum, Modern Art, Centre Pompidou, Walt Disney Concert, Department of Industrial Engineering, Research, Columbia University, NBA, Spice, Digital Organisation and Society, Royal Holloway, University of London, UK Academy of Information Systems, Yale, Pixar, Technical, Writers Guild of America, SAG, Hollywood, YouTube, Tech, Developers, Georgia Institute of Technology, National AI, Adult, Education, US National Science Foundation, Georgia Tech, Khan Academy, Systems, Studies, Agricultural Engineering, University of California, university’s, Agriculture, Labor Locations: outplacement, Iceland

☆ Your boarding pass and weight, please: Why airlines are asking passengers to step on the scales
▼ + stars: | 2023-08-28 | by ( Monica Pitrelli | Marylou Costa | ) www.cnbc.com time to read: +8 min

Starting Monday, passengers flying on Korean Air may be asked to step on a scale before boarding their flight. Is it reasonable to weigh passengers? "Fuel is 20 times more than the passenger weight," he said. Where airlines weigh passengersAir New Zealand weighed passengers in June for reasons, it said, related to safety and fuel efficiency. Commercial airline seating is based on average passenger weight from the 1950s to 1970s, Hilderman said.

Persons: —, Vance Hilderman, Shem Malmquist, Hilderman, we're, Jose Silva, Finnair, Nick Gausling, Gausling, Tigress Osborn, Jodi Jacobson Organizations: Korean, Korean Air, CNBC, Gimpo, Incheon Airport, Bombardier, Embraer, Aviation, Istock, Florida Tech's College of Aeronautics, Transport & Health, RMIT University's School of Engineering, U.S . Federal Aviation Administration, New Zealand, Hawaiian Air, Samoa Air, Reuters, Flyers, European Union Aviation Safety Agency, International Civil Aviation Organization, Romy Group, National Association Locations: Honolulu, American Samoa, United States, Europe

☆ Meet the newest employee at Elon Musk's SpaceX. He's 14.
▼ + stars: | 2023-06-10 | by ( Jyoti Mann | ) www.businessinsider.com time to read: +3 min

SpaceX has hired a young prodigy to join its Starlink division as a software engineer. The latest recruit at SpaceX is a software engineer who passed its "technically challenging" and "fun" interview process. He's planning to make the move from Pleasanton, California with his mother to start work at SpaceX in Redmond, Washington, per the report. "I felt like I was learning at the level that I was meant to learn," he told the LA Times. Starlink is SpaceX's satellite internet service and started operating in January in Nigeria – its first African market.

Persons: Santa Clara University's, he'd, BrainGain, Quazi, Starlink Organizations: SpaceX, Santa Clara University, Morning, Santa Clara, Seattle Times, Los Angeles Times, LA Times, Intel Labs, ABC7, Nigeria – Locations: California, Santa, Pleasanton , California, Redmond , Washington, Nigeria

[1/5] A full-sized humanoid robot named ARTEMIS is shown at UCLA Samueli School of Engineering, where mechanical engineering students developed a first of its kind robot in Los Angeles, California, U.S., April 13, 2023. Standing at 4 feet, 8 inches tall (142 centimeters) and weighing 85 pounds (38 kg), ARTEMIS is a first-of-its-kind robot that University of California Los Angeles (UCLA) mechanical engineers developed, and it is ready for the pitch. ARTEMIS’ actuators are also unique in that they are electrically driven, rather than controlled by hydraulics. RoMeLa student Justin Quan said his personal goal is engineering robots that improve people's lives. "Seeing these robots helping push the robot technology to that next level is really rewarding because you're like, oh, the dream, it gets closer," he said.

☆ How to delete yourself from the internet
▼ + stars: | 2023-02-10 | by ( Cheryl Winokur Munk | ) www.cnbc.com time to read: +7 min

With so much personal data floating publicly on the internet, consumers have a legitimate interest in controlling the information flow. Self-help tools to remove personal informationFor those who are so inclined, there are ways to limit the amount of personal information available on the internet. If that fails, Google says it may remove personal information "that creates significant risks of identity theft, financial fraud, or other specific harms." It can be hard to gauge the effectiveness of these services, partly because there's so much personal information in the public domain. DeleteMe's website says that 2,389 pieces of personal information, on average, are found over a two-year subscription.

☆ The biggest risks in procrastinating on iPhone, Android software updates
▼ + stars: | 2023-02-05 | by ( Kaitlin Balasaygun | ) www.cnbc.com time to read: +6 min

watch nowNot all software updates offer an array of new features, but when they do it can feel like you are getting a new phone without added cost. Yet, many users still do whatever they can to put off the 30 minutes that a software update can take. Discomfort often stems from the perception that software updates will require users to relearn how to use certain features on their device and threatens their current habits. When 30 days have passed, the system then prompts the user to install the system update. When a major security update comes out, everyone should act relatively fast.

☆ The biggest security pros and cons of using Bluetooth GPS trackers
▼ + stars: | 2023-01-14 | by ( Kaitlin Balasaygun | ) www.cnbc.com time to read: +10 min

Bluetooth tagging devices are catching on, and keeping an eye out on the world in ways never before possible. For pet owners, these GPS devices can be used as a cheaper alternative to microchipping your dog. Here are some basics to know about Bluetooth tags if you're using one already, or considering adding one to your tech-enabled life. "The problem with Bluetooth trackers … is there's no way to prevent a victim from being stalked by one of these devices because they don't control it. Two women recently filed a class-action lawsuit against Apple alleging lack of protections the AirTag has against stalking.

☆ The benefits and risks of using a password manager to protect your online identity
▼ + stars: | 2022-12-27 | by ( Cheryl Winokur Munk | ) www.cnbc.com time to read: +8 min

But there are some key decisions to make in choosing, and using, a password manager. Most web browsers have some type of password manager, which are convenient and user-friendly. For more robust security and features, security professionals say a dedicated password manager is a better choice. How to choose a strong master passwordMake sure you have a strong master password, one that's not easily guessable. What happens if you lose online accessThe master password is your entry to the password manager.

☆ Colombia's oil theft soars, leaving trail of environmental harm
▼ + stars: | 2022-12-23 | by ( Oliver Griffin | ) www.reuters.com time to read: +9 min

Reuters accompanied a police unit tasked with tackling oil theft in September to two sites near Tumaco, a Pacific port in southwest Colombia that is the terminal for the country's Transandino oil pipeline. The animals, the trees - everything is totally burned," said Colonel Johan Pena, commander of the police unit charged with tackling oil theft in Narino, a province bordering Ecuador that is known for cocaine production. Reuters approached more than a dozen environmental groups, rights advocates, government agencies and international organizations who either said they had no detailed information on the extent of the environmental damage in Colombia from oil theft or did not respond to questions. Oil spills on land smother soil pore spaces, restricting microorganisms' access to oxygen, said Martha Daza, a professor at Cali-based university Universidad del Valle's school of engineering of natural resources and the environment. Regional health authorities in Narino did not immediately respond to questions about the health impact of oil spills.

☆ ChatGPT is too limited and way too expensive to even come close to replacing Google search
▼ + stars: | 2022-12-16 | by ( Tom Dotan | ) www.businessinsider.com time to read: +7 min

A Google search executive who spoke to Insider on background said he definitely wasn't worried about the threat from ChatGPT. "What's unnerving is it looks as good and confident when it's wrong and when it's right," said Daniel Tunkelang, a search consultant and former employee on Google's search team. Google search is, of course, not immune to misinformation, and regularly surfaces links to pages that contain inaccuracies. But unlike Google search, which links to sources for information when it answers a question, an LLM runs into major problems there. Even in that situation, Google's search results would be well positioned.

☆ Buying new iPhone for better camera, battery, faster chip? Cybersecurity got an upgrade, too
▼ + stars: | 2022-11-25 | by ( Kaitlin Balasaygun | ) www.cnbc.com time to read: +6 min

Customers shop at the Apple Fifth Avenue store for the release of the Apple iPhone 14 in New York City, September 16, 2022. Improved low-light photo abilities and the extended battery life may have appeal than security upgrades on the new Apple iPhone 14, iPhone 14 Plus, iPhone 14 Pro or iPhone 14 Pro Max. While in Lockdown Mode, phone calls, plain text messages and emergency features will continue to work. The switch to eSIM-only phonesSteve Jobs never wanted the original iPhone to have a SIM card tray, and the iPhone 14 models are finally achieving this goal. All iPhone 14 models purchased in the U.S. are eSIM-only, which enables users to easily connect and transfer their plans digitally.

☆ Microsoft's latest data on hacks and why you may need new login, passwords fast
▼ + stars: | 2022-11-21 | by ( Cheryl Winokur Munk | ) www.cnbc.com time to read: +7 min

That's a 74% rise in one year, according to the latest Microsoft Digital Defense Report. But many people still rely on passwords, and don't even use the two-factor authentication now considered critical. "As long as passwords are still part of the equation, they're vulnerable," Joy Chik, Microsoft's vice president of identity, wrote in a September 2021 company blog post. Based on a sample of more than 39 million IoT and OT devices, about 20% used identical usernames and passwords, according to the Microsoft report. Even if a provider doesn't require it to be used, multi-factor authentication is a valuable security tool that's underutilized, according to security professionals.

☆ Fact Check-Experts dispute claims that GPS data leads to election fraud by helping cast illegal ballots
▼ + stars: | 2022-11-15 | by ( Reuters Fact Check | ) www.reuters.com time to read: +8 min

More examples of the image, which says GPS data can help “tip the election/s to their preferred candidates” (without identifying who “they” are), are viewable (here), (here). But GPS accuracy is degraded by satellite signal blockage (due to buildings, bridges and trees), indoor and underground use, as well as signals reflected off buildings, among other factors (here). There is no mention of using online surveillance via GPS and geolocation to verify who voted, contrary to the social media claims. For example, by monitoring the sites an individual visits or the posts they create on social media, Google “can have some idea on” voter preferences. Read more about our work to fact-check social media posts here .

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