::Since this is a talk page, I can unburden myself of opinions that don't belong in an article... I am, let us say, 90% convinced that the 1993 and 2001 attacks were sponsored by Iraq, and that this was obvious from the beginning to the real decision-makers, but that they attempted to solve the problem out of public view, and failed. Obviously, the post-1991 siege of Iraq was public knowledge, but I think the public was actively prevented from perceiving the full picture, and as a result, the post-9/11 war had to be waged in a bizarre counterfactual mode... What I should really do is put up an essay in my own user space here, presenting hypotheses and arguments. I'll let you know if I ever get around to doing that.