The story of AT&T whistleblower Mark Klein is a prime example of what 9/11 Truth needs, and what stands in our way. This is from ABC's The Blotter:

Whistle-blower AT&T technician Mark Klein says his effort to reveal alleged government surveillance of domestic Internet traffic was blocked not only by U.S. intelligence officials but also by the top editors of the Los Angeles Times.

In his first broadcast interview, which can be seen tonight on World News and Nightline, Klein describes how he stumbled across "secret NSA rooms" being installed at an AT&T switching center in San Francisco and later heard of similar rooms in at least six other cities, including Atlanta, San Diego, Los Angeles, Palo Alto, San Jose and Seattle.

"You needed an ordinary key and the code to punch into a key pad on the door, and the only person who had both of those things was the one guy cleared by the NSA," Klein says of the "secret room" at the AT&T center in San Francisco.

The NSA is the National Security Agency, the country's most secretive intelligence agency, charged with intercepting communications overseas.