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The National Security Agency gathers nearly 5 billion records a day on the location of mobile telephones worldwide, including those of some Americans, the Washington Post reported on Wednesday, citing sources including documents obtained by former NSA contractor Edward Snowden. The records feed a database that stores information about the locations of "at least hundreds of millions of devices," the newspaper said, according to the top-secret documents and interviews with intelligence officials. The report said the NSA does not target Americans' location data intentionally, but acquires a substantial amount of information on the whereabouts of domestic cellular telephones "incidentally." One manager told the newspaper the NSA obtained "vast volumes" of location data by tapping into the cables that connect mobile networks globally and that serve U.S. cellphones as well as foreign ones.