The FBI official confirmed the investigation was helped by the Canadian intelligence services, which have been involved in a number of high-profile anti-terrorist operations with US security authorities in recent months.
Vice President Dick Cheney, who has largely kept a low profile since the September 11 terrorist attacks, returned to the spotlight with a trip to New York Thursday and a look at the wreckage of the World Trade Center.
In return, Bush was lauded by Joseph Kennedy, a son of RFK and a former congressman, who called Bush "a profile in leadership" since the Sept. 11 terrorist attacks.
She also won high-profile convictions in the 1993 World Trade Center bombing and the 1998 terrorist attacks on two U.S. embassies in Africa, and put crime boss John Gotti away.
So why has it been so difficult for TSA to figure out that the likelihood is extremely remote that a passenger profile of a U.S. citizen and frequent flier with no criminal history would be a terrorist?