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.
I don't know about the other attacks, but some have theorized that 911 was anticipated. The dems really wanted to win 2000 because it would have provided an excuse to perform a coup of sorts- to massively advance the control structure over the US population.
Just a theory.
Could you imagine the Patriot Act with Janet Reno as AG?
Please remove your tinfoil hat; it's on way to tight.