Tuesday, March 17, 2015
CIA Aided Program to Spy on U.S. Cellphones
Marshals Service uses airborne devices that mimic cell towers to scan data on thousands of cellphones
By DEVLIN BARRETT
Updated March 10, 2015 7:39 p.m. ET
WASHINGTON—The Central Intelligence Agency played a crucial role in helping the Justice Department develop technology that scans data from thousands of U.S. cellphones at a time, part of a secret high-tech alliance between the spy agency and domestic law enforcement, according to people familiar with the work.
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