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Interesting...
http://img394.imageshack.us/img394/326/narussta6400sx6.jpghttp://en.wikipedia.org/wiki/Room_641ARoom 641A is an alleged intercept facility operated by AT&T for the U.S. National Security Agency, beginning in 2003. Room 641A is located in the SBC Communications building at 611 Folsom Street, San Francisco, three floors of which were occupied by AT&T before SBC purchased AT&T and changed its name to AT&T. The room was referred to in internal AT&T documents as the SG3 [study Group 3] Secure Room. It is fed by fiber optic lines from beam splitters installed in fiber optic trunks carrying Internet backbone traffic and, therefore, presumably has access to all Internet traffic that passes through the building.The room measures about 24 by 48 feet (8 by 16 meters) and contains several racks of equipment, including a Narus STA 6400, a device designed to analyze and intercept Internet communications at very high speeds.The existence of the room was revealed by a former AT&T technician, Mark Klein, and is the subject of a 2006 class action lawsuit by the Electronic Frontier Foundation against AT&T. Klein claims he was told that similar black rooms are operated at other facilities around the country.