Short Wave

Democratic donors and activists worry that the party is going to nominate someone who can't win next year, and they're musing about who else could be out there. Newsflash: This is probably it. This episode: political correspondent Scott Detrow, political correspondent Asma Khalid, and senior political editor and correspondent Domenico Montanaro. Email the show at [email protected]. Find and support your local public radio station at npr.org/stations.

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Artificial intelligence might not be as smart as we think. University and military researchers are studying how attackers could hack into AI systems by exploiting how these systems learn. It's known as "adversarial AI." Some of their experiments use seemingly simple techniques. Dina Temple-Raston has been looking into this for her special series, I'll Be Seeing You. Follow host Maddie Sofia on Twitter: @maddie_sofia. Or email the show at [email protected].

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President Trump says he is lifting sanctions on Turkey after the country agreed to what he called a permanent cease-fire in northern Syria, ending Turkey's military offensive that began after the U.S. pulled troops from the area. This episode: political correspondent Scott Detrow, White House correspondent Tamara Keith, and national security editor Phil Ewing. Email the show at [email protected]. Find and support your local public radio station at npr.org/stations.

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The world's largest intact temperate rainforest is in a place you may not expect: southeast Alaska. The Trump administration wants to eliminate a longstanding rule protecting the Tongass National Forest from logging and road construction. Why? And what might this mean for one of the top carbon sinks in the world? Maddie talks with reporter Emily Kwong about the Tongass.

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Longtime U.S. diplomat William Taylor is testifying on Capitol Hill Tuesday as part of the House impeachment inquiry, and Democrats say his insight is bolstering their case against President Trump. This episode: political correspondent Scott Detrow, congressional correspondent Susan Davis, and justice correspondent Ryan Lucas. Email the show at [email protected]. Find and support your local public radio station at npr.org/stations.

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NASA astronauts Christina Koch and Jessica Meir completed the first all-female spacewalk last week. The historic moment came 35 years after Kathryn Sullivan became the first American woman to spacewalk. We hear from Koch, Meir, and Sullivan. And former NASA chief scientist Ellen Stofan tells us why she says this moment is long overdue. Follow host Maddie Sofia on Twitter @maddie_sofia. Email the show at [email protected].

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President Trump announced that he's dropping his plan to host next year's G-7 meeting of the leaders of the world's biggest economies at his Miami-area golf club. This episode: political correspondent Scott Detrow, White House reporter Ayehsa Rascoe, and national political correspondent Mara Liasson. Email the show at [email protected]. Find and support your local public radio station at npr.org/stations.

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Randall Munroe, the cartoonist behind the popular Internet comic xkcd, finds complicated solutions to simple, real-world problems. In the process, he reveals a lot about science and why the real world is sometimes even weirder than we expect. His new book is called How To: Absurd Scientific Advice for Common Real-World Problems. Follow host Maddie Sofia on Twitter: @maddie_sofia. Email the show at [email protected].

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This week Joe Biden's campaign released fundraising numbers that showed his campaign does not have much cash on hand, and Bernie Sanders was endorsed by Alexandria Ocasio-Cortez. Plus, Trump passed his 1,000th day in office and proved he is more Trumpian than ever. This episode: Congressional correspondent Susan Davis, White House correspondent Tamara Keith, political correspondent Asma Khalid, and editor correspondent Ron Elving. Email the show at [email protected]. Find and support your local public radio station at npr.org/stations.

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Pioneering ecologist Nalini Nadkarni takes us up into the canopy — the area above the forest floor — where she helped research and document this unexplored ecosystem. Plus: the story of her decades-long effort to get more women into science, and how she found a surprising ally in the fight — Barbie. Video and more from Maddie's trip to the canopy is here. Follow Maddie on Twitter @maddie_sofia. Email the show at [email protected].

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