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We have come together with a unity of purpose because our nation demands it. September 11, 2001, was a day of unprecedented shock and suffering in the history of the United States.
EXECUTIVE SUMMARY
During the spring and summer of 2001, U.S. intelligence agencies received a stream of warnings that al Qaeda planned, as one report put it, "something very, very, very big." Director of Central Intelligence George Tenet told us, "The system was blinking red."
Although Bin Ladin was determined to strike in the United States, as President Clinton had been told and President Bush was reminded in a Presidential Daily Brief article briefed to him in August 2001, the specific threat information pointed overseas. Numerous precautions were taken overseas. Domestic agencies were not effectively mobilized. The threat did not receive national media attention comparable to the millennium alert...........
As final preparations were under way during the summer of 2001, dissent emerged among al Qaeda leaders in Afghanistan over whether to proceed. The Taliban's chief, Mullah Omar, opposed attacking the United States. Although facing opposition from many of his senior lieutenants, Bin Ladin effectively overruled their objections, and the attacks went forward..............
Operational Opportunities
We write with the benefit and handicap of hindsight. We are mindful of the danger of being unjust to men and women who made choices in conditions of uncertainty and in circumstances over which they often had little control.
Nonetheless, there were specific points of vulnerability in the plot and opportunities to disrupt it. Operational failures-opportunities that were not or could not be exploited by the organizations and systems of that time-included