If the Iraqis actually launch chemical or biological weapons against our forces, then the Bush Administration will have been vindicated: it will prove that they were right, and the rest of the United Nations was wrong. If that happens, I'm guessing the rest of the security council will choose to fall in line with us and vanquish Iraq.
But if the war proceeds to something approaching completion without the use of "WMDs" by the Iraqis, this nation will be a paraiah -- a laughingstock -- a demon. It will show that Bush fought this war for no better reason than to avenge his daddy. It will also guarantee that George W. will follow his daddy's footsteps in the One-Term President's Hall Of Shame.
I still don't see any way for this to all come out to the good.