Showed how far the administration had their collective head's up their collective asses regarding the threat of terrorism.
On July 10, 2001, the book says, Mr. Tenet and his counterterrorism chief, J. Cofer Black, met with Ms. Rice at the White House to impress upon her the seriousness of the intelligence the agency was collecting about an impending attack. But both men came away from the meeting feeling that Ms. Rice had not taken the warnings seriously.
They went over top-secret intelligence pointing to an impending attack and "sounded the loudest warning" to the White House of a likely attack on the U.S. by Bin Laden. Woodward writes that Rice was polite, but, "They felt the brushoff." Tenet and Black were both frustrated.
Tenet also claims that his alarm over Bin Laden was downplayed by Secretary of Defense Donald Rumsfeld, who asked, "Could all this be a grand deception?"
In the spring of 2001 John Ashcroft was told by FBI Director Louis Freeh of the growing threat of terrorism. According to Freeh, "he didn't want to hear about it".
The Aug. 6th Presidential Briefing entitled "Bin Laden Determined to Strike Within the U.S." was delivered to George W. Bush at his Crawford, TX ranch by a CIA briefer. In the recent book by Pulitzer-prize winning journalist Ron Suskind called "The One Percent Doctrine", Bush's response to the CIA briefer was, "All right ... You've covered your ass, now."
Not sure how any of this suggests they made the attacks happen.