Except the original WTC bombing, OKC, TWA800, the embasssy bombings, the Cole, and an overwhelming need to run screaming from anything that remotely resembled a terrorist attack. The denial, coverups and misapplied responses surrounding these events led directly to 911.
Must be repeated.
Maybe the various attacks were "planned," and the blame was to be placed on domestic terrorists. The arrangements with the BinLaden types may have gone sour. Blackmail would not be out of the question.