Going dark [electronic resource] : lawful electronic surveillance in the face of new technologies : hearing before the Subcommittee on Crime, Terrorism, and Homeland Security of the Committee on the Judiciary, House of Representatives, One Hundred Twelfth Congress, first session, February 17, 2011.
- Washington : U.S. G.P.O., 2011.
- Government document
1 online resource (iii, 79 p.)
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