10 things you need to know today: December 5, 2013

The NSA tracks millions of mobile phones, Biden asks China to ease tensions, and more

Biden in China
(Image credit: (AP Photo/Lintao Zhang, Pool))

1. NSA gathers data on the whereabouts of cellphones

The National Security Agency collects nearly 5 billion records a day on the locations of cellphones all over the world, according to interviews and documents provided by NSA leaker Edward Snowden and reported by The Washington Post. The agency uses the information to track the movements and relationships of people overseas with suspected terrorist ties. The NSA does not target Americans, but tracks some of them "incidentally." [Washington Post]

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Harold Maass, The Week US

Harold Maass is a contributing editor at The Week. He has been writing for The Week since the 2001 debut of the U.S. print edition and served as editor of TheWeek.com when it launched in 2008. Harold started his career as a newspaper reporter in South Florida and Haiti. He has previously worked for a variety of news outlets, including The Miami Herald, ABC News and Fox News, and for several years wrote a daily roundup of financial news for The Week and Yahoo Finance.