more on republicans using AT&T to spy on us

By coincidence, in October 2003, Klein was transferred to that AT&T office and assigned to the Internet room. He asked a technician there about the secret room on the 6th floor, and the technician told him it was connected to the Internet room a floor above. The technician, who was about to retire, handed him some wiring diagrams.

That was my 'aha!' moment," Klein said. "They're sending the entire Internet to the secret room." The diagram showed splitters, glass prisms that split signals from each network into two identical copies. One fed into the secret room, the other proceeded to its destination, he said.

"This splitter was sweeping up everything, vacuum-cleaner-style," he said. "The NSA is getting everything. These are major pipes that carry not just AT&T's customers but everybody's."

One of Klein's documents listed links to 16 entities, including Global Crossing, a large provider of voice and data services in the United States and abroad; UUNet, a large Internet provider in Northern Virginia now owned by Verizon; Level 3 Communications, which provides local, long-distance and data transmission in the United States and overseas; and more familiar names such as Sprint and Qwest. It also included data exchanges MAE-West and PAIX, or Palo Alto Internet Exchange,