I have read excerpts from many of them, along with other recently declassified records, and come to an inescapable conclusion: the administration’s reaction to what Mr. Bush was told in the weeks before that infamous briefing reflected significantly more negligence than has been disclosed. In other words, the Aug. 6 document, for all of the controversy it provoked, is not nearly as shocking as the briefs that came before it.
The direct warnings to Mr. Bush about the possibility of a Qaeda attack began in the spring of 2001. By May 1, the Central Intelligence Agency told the White House of a report that “a group presently in the United States” was planning a terrorist operation. Weeks later, on June 22, the daily brief reported that Qaeda strikes could be “imminent,” although intelligence suggested the time frame was flexible.
Yet, the White House failed to take significant action. Officials at the Counterterrorism Center of the C.I.A. grew apoplectic. On July 9, at a meeting of the counterterrorism group, one official suggested that the staff put in for a transfer so that somebody else would be responsible when the attack took place, two people who were there told me in interviews.
On July 24, Mr. Bush was notified that the attack was still being readied, but that it had been postponed, perhaps by a few months. But the president did not feel the briefings on potential attacks were sufficient, one intelligence official told me, and instead asked for a broader analysis on Al Qaeda, its aspirations and its history. In response, the C.I.A. set to work on the Aug. 6 brief.