Your original point implied that had he possessed WMD the attack would not have happened. That is clearly not the case. He had them during the first war afterall, and we still invaded Iraq as part of the campaign in Kuwait. His previous WMD program even then lacked deterrence against a prepared superpower *in his own country*. Even your example of nuking his own people wouldn't have helped him much...and probably wouldn't have killed all that many U.S. personnel at the time.