9/11 investigation

'KNOWN WOLF' TERROR SCANDAL: CIA Knew About 9-11 Hijackers, Didn't Provide Intel to FBI

Some of what we know about the CIA's pre-9/11 intelligence about the hijackers comes from a joint congressional inquiry several years after the attacks. But the most revealing information has come from former FBI agent Mark Rossini, who -- though an FBI agent -- was assigned to the CIA and prevented from sharing the information with his colleagues.

Two years ago, Jeff Stein at Newsweek detailed Rossini's story:

Rossini is well placed to do just that. He’s been at the center of one of the enduring mysteries of 9/11: Why the CIA refused to share information with the FBI (or any other agency) about the arrival of at least two well-known Al-Qaeda operatives in the United States in 2000, even though the spy agency had been tracking them closely for years.