Big Brother Spying on Americans' Internet Data?

It would be difficult to say whose e-mail, text messages or Internet phone calls the government is monitoring at any given time, but according to a former AT&T employee, the government has warrantless access to a great deal of Internet traffic should they care to take a peek.

A whistleblower says AT&T is allowing the U.S. government to spy on American's Internet data.

(ABC News)

As information is traded between users it flows also into a locked, secret room on the sixth floor of AT&T's San Francisco offices and other rooms around the country -- where the U.S. government can sift through and find the information it wants, former AT&T employee Mark Klein alleged Wednesday at a press conference on Capitol Hill.

"An exact copy of all Internet traffic that flowed through critical AT&T cables -- e-mails, documents, pictures, Web browsing, voice-over-Internet phone conversations, everything -- was being diverted to equipment inside the secret room," he said.

Klein, who worked for more than 20 years as a technician at AT&T, said that the highly secretive electronics-focused National Security Agency began working with telecom companies to gain wholesale access to vast amounts of data traveling over the Internet.

Whistleblower: AT&T Allows U.S. to Spy on Internet Data

Klein was on Capitol Hill Wednesday attempting to convince lawmakers not to give a blanket, retroactive immunity to telecom companies for their secret cooperation with the government.

He said that as an AT&T technician overseeing Internet operations in San Francisco, he helped maintain optical splitters that diverted data en route to and from AT&T customers.

One day he found that the splitters were hard-wired into a secret room on the sixth floor.

Klein said only a management-level employee with NSA security clearance was allowed inside, but documents he obtained form AT&T showed that highly sophisticated data mining equipment was kept there.

Conversations he had with other technicians and the AT&T documents led Klein to believe there are 15 to 20 such sites nationwide, including in Seattle, Los Angeles, San Jose, San Diego and Atlanta, he said.