Oct 192012
 October 19, 2012  Posted by  Surveillance, U.S.

Ryan Gallagher reports:

Tracking cell phones by tricking them into operating on a bogus network is a law enforcement tactic shrouded in secrecy. Now the FBI is under pressure to release information about it—but the bureau doesn’t want to let go of 25,000 pages of documents on sophisticated cell surveillance technology.

Read more on Slate.

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