The Washington Post reports: The National Security Agency is gathering nearly 5 billion records a day on the whereabouts of cellphones around the world, according to top-secret documents and interviews with U.S. intelligence officials, enabling the agency to track the movements of individuals — and map their relationships — in ways that would have been previously unimaginable.

The records feed a vast database that stores information about the locations of at least hundreds of millions of devices, according to the officials and the documents, which were provided by former NSA contractor Edward Snowden. New projects created to analyze that data have provided the intelligence community with what amounts to a mass surveillance tool. [Continue reading…]

How the NSA is tracking people right now (infographic)

Andrea Peterson writes: In conversations with The Washington Post over Barton Gellman and Ashkan Soltani’s recent story on cellphone location tracking, an intelligence agency lawyer told Gellman, “obviously there is no Fourth Amendment expectation in communications metadata.” But some experts say it’s far from obvious that the 1979 Supreme Court case on which the administration bases this view gives the government unfettered power to scoop up Americans’ cellphone location data. [Continue reading…]