I just saw this article at the Congressional Quarterly. It is a major, major development:

The FBI has blocked two of its veteran counterterrorism agents from going public with accusations that the CIA deliberately withheld crucial intelligence before the Sept. 11, 2001 attacks.

FBI Special Agents Mark Rossini and Douglas Miller have asked for permission to appear in an upcoming public television documentary, scheduled to air in January, on pre-9/11 rivalries between the CIA, FBI and National Security Agency.

The program is a spin-off from The Shadow Factory: The Ultra-Secret NSA from 9/11 to the Eavesdropping on America, by acclaimed investigative reporter James Bamford, due out in a matter of days.

The FBI denied Rossini and Miller permission to participate in the book or the PBS "NOVA" documentary, which is also being written and produced by Bamford,/ on grounds that the FBI "doesn't want to stir up old conflicts with the CIA," according to multiple reliable sources.

Continued here.

There are a number of things to be said about this story and I will have some reaction to it later. It is obviously related to this category in the 9/11 Timeline.