37°47′07″N 122°23′48″W / 37.78528°N 122.39667°W
National Security Agency surveillance |
---|
Part of a series on |
Global surveillance |
---|
Disclosures |
Systems |
Selected agencies |
Places |
Laws |
Proposed changes |
Concepts |
Related topics |
Room 641A is a telecommunication interception facility operated by AT&T for the U.S. National Security Agency, as part of its warrantless surveillance program as authorized by the Patriot Act. The facility commenced operations in 2003 and its purpose was publicly revealed by AT&T technician Mark Klein in 2006.[1][2]