The only reason to go into Iraq is to protect the U.S. from WMD's and a ruler who has proven that he is fully capable of using them. Without WMD's I cannot imagine a legitimate reason to go to war with Iraq.
I can. Hussein's firing on our planes patrolling the No Fly Zone was reason enough, and he should not have been allowed to stay in power after the attempt on the life of former Pres. Bush.