By the way, bin Laden's declaration of war on February 23, 1998 can be found here. It is pretty clear that in his warped judgement, America was responsible for all the ills of the Moslem world. If you are seeking a connection between bin Laden and Iraq, you don't have to go any further than this document either, since one of the lines of this fatwa clearly addresses the issue of Iraq as one of the reasons to pursue jihad against the US:
"The best proof of this is the Americans' continuing aggression against the Iraqi people using the Peninsula as a staging post, even though all its rulers are against their territories being used to that end, still they are helpless. "
I think it is important to remind everyone that we have been at war since 1998, but we only realized it on September 11, 2001. We cannot and must not forget it now.