The sentencing trial of Zacarias Moussaoui re-opened one of the most troubling questions about Sept. 11: Could the FBI have stopped the attacks? Guests review trial revelations about FBI bungling and the startling claim of plans to attack the White House with a fifth plane.
Former Rep. Timothy Roemer (D-IN), who was a member of the 9/11 Commission.
Harry "Skip" Brandon, former deputy assistant director in the FBI's Counter-Intelligence division; partner at Smith Brandon International, an international security consulting firm.
Stephen Saltzburg, law professor at George Washington University Law School, Washington, D.C.