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With less than four months to go, how much are this year's midterm elections at risk for the kind of interference sowed by Russia in 2016?

Counting cats, much like herding them, is a complicated proposition.

But a coalition of groups in Washington, D.C., is giving it a shot.

PetSmart Charities, the Humane Society, the Humane Rescue Alliance and the Smithsonian Conservation Biology Institute are collaborating on a project called the D.C. Cat Count, which aims to create a more accurate estimate of the city's entire cat population — both feral cats and pet cats.

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ARI SHAPIRO, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

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There's a fresh controversy for Facebook. Yesterday in an interview with the podcast Recode, Facebook CEO Mark Zuckerberg said Holocaust deniers should be allowed to express their opinion on the social media platform.

Each spring, barnacle geese migrate more than 1,800 miles from the Netherlands and northern Germany to their breeding grounds in parts of Russia above the Arctic Circle.

The journey north usually takes about a month, and the geese make multiple stops along the way to eat and fatten up before they lay their eggs, says Bart Nolet of the Netherlands Institute of Ecology and the University of Amsterdam.

Three Dimensions, Endless Possibilities

22 hours ago

Five years ago, Cody Wilson fired the world’s first fully 3-D-printed gun at a range in central Texas. Then he shared the blueprint online, where it was downloaded over 100,000 times in the first few days.

Facebook CEO Mark Zuckerberg is clarifying remarks he made about whether his platform should remove content posted by Holocaust deniers, saying he wasn't defending them when he commented that it was hard to know their intentions. His initial comments set off intense criticism earlier this week.

A Texas nonprofit that works with families separated at the border has turned down a $250,000 contribution from Salesforce, a company under pressure for its work creating software for the U.S. Customs and Border Patrol.

Did you notice the emoji explosion on social media this week?

Smartphones and tablets have quickly become a permanent part of students' daily lives. Kids up to 8 years old spent almost an hour a day on mobile devices, Common Sense Media reported last year.

The Terminator's killer robots may seem like a thing of science fiction. But leading scientists and tech innovators have signaled that such autonomous killers could materialize in the real world in frighteningly real ways.

During the annual International Joint Conference on Artificial Intelligence in Stockholm on Wednesday, some of the world's top scientific minds came together to sign a pledge that calls for "laws against lethal autonomous weapons."

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Google says it will appeal a record fine of more than $5 billion for violating European Union antitrust laws. It's the latest move by European officials to regulate American tech giants. Here's NPR's Laura Sydell.

The future of how you interact with computers depends on a technology that's more than 3,000 years old. It's a technology you already use every day, on your smartphone, your TV, in your home, your car and most likely at work. It's even in the wires that bring you Internet service at near-light speed.

It's glass.

Updated at 3:05 p.m. ET

Tech entrepreneur Elon Musk has apologized for his part in a spat with a British diver involved in the rescue of 12 boys and their soccer coach trapped in a flooded cave in Thailand. Musk had tweeted a personal attack on Vern Unsworth, calling him a pedophile after the diver dismissed Musk's offer of help with a vulgar comment.

Updated on Friday at 10:40 a.m.

Iram Sabah, mother of two, is terrified by messages her family has been receiving on their smartphones.

Her husband recently was forwarded a video that shows a child's mutilated body. It's unclear where or when the video is from, or whether it has been doctored. A voice implores people to forward it to others, and to stay vigilant — that kidnappers are on the loose.

Sabah, 27, doesn't know if the video is fake or real. But she's not taking any chances.

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