9/11 panel suspected deception by Pentagon

Some staff members and commissioners of the Sept. 11 panel concluded that the Pentagon's initial story of how it reacted to the 2001 terrorist attacks may have been part of a deliberate effort to mislead the commission and the public rather than a reflection of the fog of events on that day, according to sources involved in the debate.

Hear excerpts from the September 11 NORAD tapes in today's issue of Vanity Fair.