Between May and July the National Security Agency reported at least 33 different intercepts indicating a possible imminent al Qaeda attack. Classified threat warnings about terrorist strikes ricocheted through the government’s secure message systems nearly every day. The FBI issued 216 secret, internal threat warnings between January 1 and September 10, 2001, of which 6 mentioned possible attacks against airports or airlines. The State Department issued 9 separate warnings during the same period to embassies and citizens abroad, including 5 that highlighted a general threat to Americans all
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