Our class action lawsuit against AT&T for collaborating with the National Security Agency in the massive, illegal program to wiretap and data-mine Americans' communications includes powerful evidence of a secret room in San Francisco.

But the hub of the spying program may be just outside of St. Louis, in a Missouri town called Bridgeton. A special report from local station KMOV puts the pieces together in a comprehensive and disturbing story about this dragnet surveillance, with the help of AT&T whistleblower Mark Klein. Watch the video on the KMOV site for a fresh look at a key piece of this spying puzzle.