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NEW YORK — Jean Kennedy Smith, the youngest sister and last surviving sibling of President John F. Kennedy, died at 92, her daughter confirmed to the New York Times. Smith died Wednesday at her Manhattan home, her daughter Kym told the Times. Smith served as ambassador to Ireland for five years under President Bill Clinton. She also founded an arts education program that supports artists with physical or mental disabilities. She was the eighth of nine children born to Joseph P. and Rose Kennedy, and she tragically outlived several of them by decades. 564

New data shows that those who use Duolingo — a popular language app — can learn the equivalent of four semesters of university study. The app is free for all, and parents and teachers say it is a good supplement for students of all ages who are learning from home this fall.Averill, 10, is quite the Duolingo master. Her Spanish teacher recommended the app to pair with her in class lessons a few years back. Averill took that one step further.She's currently learning Korean. When she masters that, it will be her third language."My dad is Korean, and so my grandparents speak Korean," Averill said. "I'm trying to learn it because we're planning a trip to Korea to visit some relatives and I'm trying to learn it so I can speak to them a little bet,ter than I can right now."She likes to take what she's learned and practice on her grandparents. So far, she says, she's doing pretty well.Korean and Spanish are two of the 39 featured languages on Duolingo. This spring, when COVID-19 sent America into lockdown, new users flocked to the app. Dr. Cindy Blanco is a learning scientist at Duolingo."Our new users spiked 66%, which in any other time would be enormous but the spike continued the rest of the month," said Dr. Cindy Blanco, a learning scientist at Duolingo. "Our new user growth in March was 113%, which is unprecedented — kind of the word of the year."People were also downloading the app to keep their language skills sharp and because teachers needed help."The most important thing to not fall behind in a language course is to keep getting in front of that language," Blanco said.As a Doctor of Linguistics, Blanco is a Duolingo user herself. She's currently trying to keep up with her Russian. She's already well-versed in Spanish, French, Catalan, Italian and American Sign Language.Blanco says Duolingo offers all sorts of content, including lessons, short stories, podcasts, and seven a virtual language practicing event. Because Duolingo is app-based, it means users can access it from anywhere, anytime."It's more important than ever that we create products that can meet people where they are and where they are is at home with small handheld devices," Blanco said. "So, how can we get language learning literally in your hands?"It's also fun. The program moves away from textbooks and worksheets that many find monotonous, especially when it comes to language."We often associated language-learning with dry high school classes of textbooks and worksheets," Blanco said. "So, to see something that's fun, that you like doing, you're deceiving yourself. 'Well, I can't possibly also be learning, I'm enjoying it too much.'" 2655

North Korea appeared to destroy at least three nuclear tunnels, observation buildings, a metal foundry and living quarters at its Punggye-ri nuclear test site on Thursday, in a process observed by invited international journalists.A CNN crew at the remote mountain site in the country's north witnessed explosions at nuclear tunnels 2, 3 and 4, from observation decks about 500 meters away.They were among two dozen journalists invited into the country to observe the apparent destruction of the site, which comes just weeks before a planned meeting between North Korean leader Kim Jong Un and US President Donald Trump.The journalists spent about 10 hours on the ground at the nuclear test site before leaving by train for the 12-hour journey back to the North Korean coastal city of Wonsan.North Korea announced on April 20 that the country had "realized nuclear weaponization," and would no longer need to test nuclear weapons. To demonstrate its commitment, it said it would destroy the nuclear test site.North Korea said inviting international media to the event would "ensure transparency of discontinuance of the nuclear test."Before the explosions, the journalists said they were invited to look inside three of the four tunnels, which appeared to be rigged with explosives, before moving a safe distance away to witness their detonation.The amount and type of explosives used were not described by the regime. The CNN journalists present described seeing "soccer ball" sized and shaped explosives, rigged alongside one another, visible for a distance of around 35 meters inside the tunnels.The journalists watched a succession of explosions, and when they were finished were allowed closer to inspect the damage. Each tunnel was caved in, with rubble blocking the entrance.There were no international experts in the invited group and no one was present who was able to assess the explosions in order to tell if they were deep enough to destroy the tunnels.North Korea has conducted six nuclear tests at the site, which lies more than 200 miles (370 kilometers) north of Pyongyang, the most recent and powerful of which was in September 2017.There are four tunnels at the site, although journalists only witnessed the destruction of three. A fourth tunnel used for one nuclear test in 2006 had already been shut down, North Korean officials said. The journalists were also shown two additional tunnels that the North Korean officials said had never been used before.Before Thursday's explosions, experts had warned that the tunnels' destruction could destroy valuable evidence of the state of North Korea's weapons program. They told CNN they would want to take samples, as well as radiation counters to assess the levels in the atmosphere.Journalists who attempted to take radiation measuring equipment into North Korea said it had been confiscated.Tom Cheshire, a correspondent with Britain's Sky News, said his team's satellite phone and radiation dosimeter -- a device to measure nuclear radiation -- was taken away by security at Wonsan airport. Chinese journalists also had equipment confiscated.?The-CNN-Wire 3131

NEW YORK (AP) — It's OK to eat some romaine lettuce again, U.S. health officials said. Just check the label.The Food and Drug Administration narrowed its blanket warning from last week, when it said people shouldn't eat any type of romaine because of an E. coli outbreak. The agency said Monday that romaine recently harvested in Arizona, Florida, Mexico and California's Imperial Valley is OK to eat. It says romaine from those places wasn't yet shipping when the illnesses began.It says the tainted romaine appears to have come from the Central Coast region of California.The produce industry agreed to start putting harvest dates and regions on labels. For romaine that doesn't come in packaging, grocers and retailers are being asked to post the information by the register.The FDA warned Americans not to eat romaine that isn't labeled with that information, and it said it had commitments from the industry that such labeling will become standard for romaine. It also noted hydroponically grown romaine and romaine grown in greenhouses isn't implicated in the outbreak.The labeling arrangement was worked out as the produce industry called on the FDA to quickly narrow the scope of its warning so it wouldn't have to waste freshly harvested romaine. An industry group said people can expect to start seeing labels as early as this week. It noted the labels are voluntary, and that it will monitor whether to expand the measure to other leafy greens and produce.Robert Whitaker, chief science officer of the Produce Marketing Association, said labeling for romaine could help limit the scope of future alerts and rebuild public trust after other outbreaks."Romaine as a category has had a year that's been unfortunate," Whitaker said.The FDA still hasn't identified a source of contamination in the latest outbreak. There have been no reported deaths, but health officials say 43 people in 12 states have been sickened. Twenty-two people in Canada were also sickened.Even though romaine from the Yuma, Arizona, region is not implicated in the current outbreak, it was blamed for an E. coli outbreak this spring that sickened more than 200 people and killed five. Contaminated irrigation water near a cattle lot was later identified as the likely source.Leafy greens were also blamed for an E. coli outbreak last year. U.S. investigators never specified which salad green might be to blame for those illnesses, which happened around the same time of year as the current outbreak. But officials in Canada identified romaine as a common source of illnesses there.The produce industry is aware the problem is recurring, said Jennifer McEntire of the United Fresh Produce Association."To have something repeat in this way, there simply must be some environmental source that persisted," she said. "The question now is, can we find it?"Growers and handlers in the region tightened food safety measures after the outbreak this spring, the industry says. Steps include expanding buffer zones between cattle lots and produce fields. But McEntire said it's not known for sure how the romaine became contaminated in the Yuma outbreak. Another possibility, she said, is that winds blew dust from the cattle lot onto produce.McEntire said the industry is considering multiple theories, including whether there is something about romaine that makes it more susceptible to contamination. Compared with iceberg lettuce, she noted its leaves are more open, thus exposing more surface area.Romaine harvesting just recently began shifting from the Central Coast growing regions in central and northern California to other regions. Since romaine has a shelf life of about 21 days, health officials said last week they believed contaminated romaine could still be on the market or in people's homes.Food poisoning outbreaks from leafy greens are not unusual. But after a 2006 outbreak linked to spinach, the produce industry took steps it believed would limit large scale outbreaks, said Timothy Lytton, a Georgia State University law professor. The outbreak linked to romaine earlier this year cast doubt on how effective the measures have been, he said.But Lytton also noted the inherent risk of produce, which is grown in open fields and eaten raw.The FDA said the produce industry also agreed to consider longer-term labeling options that would help identify and trace leafy greens.___The Associated Press Health & Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education. The AP is solely responsible for all content. 4582

NEW YORK CITY — New York City schools will temporarily close to in-person learning after the city's percentage of positive COVID-19 tests exceeded 3% over a seven-day average, New York City Mayor Bill de Blasio said on Wednesday."Unfortunately, this means public school buildings will be closed as of tomorrow, Thursday Nov. 19, out an abundance of caution,"de Blasio tweeted. "We must fight back the second wave of COVID-19."The mayor announced the news Wednesday afternoon more than four hours after he was meant to address the latest coronavirus news at a press conference.De Blasio had previously set a school-shutdown threshold of a 3% positivity rate over a seven-day period. 689