09/02/2013 08:46 am ET

Drug Agents Use Vast Phone Trove, Eclipsing N.S.A.’s


For at least six years, law enforcement officials working on a counternarcotics program have had routine access, using subpoenas, to an enormous AT&T database that contains the records of decades of Americans’ phone calls — parallel to but covering a far longer time than the National Security Agency’s hotly disputed collection of phone call logs.

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