That's rubbish to be polite
As usual factless statements just thrown out hoping no one ever questions them
A few days after the attacks, FBI Director
Robert Mueller announced: "There were no warning signs that I'm aware of that would indicate this type of operation in the country
July 10
th the CIA Director -
“Tenet vividly recalls the White House meeting with Rice and her team. (George W. Bush was on a trip to Boston.) “Rich [Blee] started by saying, ‘There will be significant terrorist attacks against the United States in the coming weeks or months. The attacks will be spectacular. They may be multiple. Al Qaeda’s intention is the destruction of the United States.’” [Condi said:] ‘What do you think we need to do?’ Black responded by slamming his fist on the table, and saying, ‘We need to go on a wartime footing now!’”
Just too vague to be of any specific use. They should have been onto the terrorists training in Florida and guarded against hijacking.