..."intelligence had been streaming in concerning a likely Al Qaeda attack. "It all came together in the third week in June," Clarke said. "The C.I.A.'s view was that a major terrorist attack was coming in the next several weeks." On July 5th, Clarke summoned all the domestic security agencies—the Federal Aviation Administration, the Coast Guard, Customs, the Immigration and Naturalization Service, and the F.B.I.—and told them to increase their security in light of an impending attack."
Just read it.