Failure to Act on Pre-9/11 Warnings

The Times reports that according to a classified report by the 9/11 Commission:

"American aviation officials were warned as early as 1998 that Al Qaeda could "seek to hijack a commercial jet and slam it into a U.S. landmark," according to previously secret portions of a report prepared last year by the Sept. 11 commission. The officials also realized months before the Sept. 11 attacks that two of the three airports used in the hijackings had suffered repeated security lapses."

The report does not go on to specify the source(s) of the information or the names of the two airports in question.