Former AT&T technician Mark Klein’s statement about the company’s alleged collusion with the NSA has been under seal in a San Francisco courthouse as part of EFF’s lawsuit against AT.
Wired just released statement.
In San Francisco the “secret room” is Room 641A at 611 Folsom Street, the site of a large SBC phone building, three floors of which are occupied by AT&T. High speed fiber optic circuits come in on the 8th floor and run down to the 7th floor where they connect to routers for AT&T's WorldNet service, part of the latter's vital “Common Backbone.” In order to snoop on these circuits, a special cabinet was installed and cabled to the “secret room” on the 6th floor to monitor the information going through the circuits. (The location code of the cabinet is 070177.04, which denotes the 7th floor, aisle 177 and bay 04.) The “secret room” itself is roughly 24-by-48 feet, containing perhaps a dozen cabinets including such equipment as Sun servers and two Juniper routers, plus an industrial-size air conditioner.