This story was first broke by the New York Times:
"Bush Lets U.S. Spy on Callers Without Courts" http://www.nytimes.com/2005/12/16/politics/16program.html
"Bush Lets U.S. Spy on Callers Without Courts" http://www.nytimes.com/2005/12/16/politics/16program.html
This is most likely about murdering civilians in a botched air strike by CIA. CIA can and will shut a place down if they believe there is classified information there. I have heard of offices being raided and all hard drives shredded.