What, in your opinion, puts him "past his expiration date"? Do you feel he would attack the U.S. if/when he aquires WMD, even if we weren't out to remove him?
A) Use of poison gas on his fellow Iraqis.
B) Invading Kuwait.
C) Firing SCUDs at Israel.
D) Non-compliance with terms of the Gulf War cease-fire.
I don't think he would attack America directly, as he has shown he will with Israel or his immediate neighbors, but I believe he would farm his WMDs out to third parties in the hope they couldn't be traced back to Iraq, and those weapons would be used against our citizens or interests.