https://www.politico.eu/article/attacks-will-be-spectacular-cia-war-on-terror-bush-bin-laden/
The drama of failed warnings began when Tenet and Black pitched a plan, in the spring of 2001, called “the Blue Sky paper” to Bush’s new national security team. It called for a covert CIA and military campaign to end the Al Qaeda threat—“getting into the Afghan sanctuary, launching a paramilitary operation, creating a bridge with Uzbekistan.” “And the word back,” says Tenet, “‘was ‘we’re not quite ready to consider this. We don’t want the clock to start ticking.’” (Translation: they did not want a paper trail to show that they’d been warned.) Black, a charismatic ex-operative who had helped the French arrest the terrorist known as Carlos the Jackal, says the Bush team just didn’t get the new threat: “I think they were mentally stuck back eight years [before]. They were used to terrorists being Euro-lefties—they drink champagne by night, blow things up during the day, how bad can this be? And it was a very difficult sell to communicate the urgency to this.”