“In 2002, an AT&T technician named Mark Klein discovered that the National Security Agency had installed a secret monitoring facility at the San Francisco building where he worked,” Sam Gustin reports for TIME Magazine.

“Four years later — after reading a New York Times story detailing the George W. Bush administration’s secret warrantless wiretapping program, Klein finally went public with what he’d seen,” Gustin reports. “Today, both the NSA and AT&T refuse to discuss what was going on in now-legendary Room 641A at 611 Folsom Street, as whatever was happening there remains classified.”

“Today, both the NSA and AT&T refuse to discuss what was going on in now-legendary Room 641A at 611 Folsom Street, as whatever was happening there remains classified,” Gustin reports. “Part two premieres Tuesday, May 20 at 10 p.m. ET on PBS stations nationwide. FRONTLINE was kind enough to share an exclusive advance look with TIME.”

 
Direct link to video here.

[Thanks to MacDailyNews Reader "Lynn W." for the heads up.]

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