Martin Kaste

As horrific as mass shootings are, they are outliers. The vast majority of gun deaths in America are either suicides or one-on-one shootings. Mass shootings represent a small fraction of deaths by firearm.

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RACHEL MARTIN, HOST:

There were shouting matches, even some violence, yesterday in Portland, Ore., when a group of President Trump supporters ran into angry counterdemonstrators. Here's NPR's Martin Kaste.

Body cameras are spreading fast through American policing, and they're generating an ocean of video. Axon, a company that provides secure cloud storage for police departments, says it has received more than 4 million hours' worth of video uploads from its clients.

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Cops have a decent shot at catching run-of-the-mill online scammers — say, the guy selling a car that's just too good to be true on Craigslist. But catching ransomware attackers is generally much more difficult — unless they slip up.

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