You make it sound like the President just made it all up. Almost every nation in the civilized world believed Saddam had WMD's. Maybe that's because he kept telling the world he had them. Of course it doesn't matter that they actually have found some the of the banned missiles he was supposed to destroy. It doesn't seem to matter that he lost a war and refused to uphold his surrender terms. It doesn't matter that Bush had a U.N resolution passed and that just like the ump-teen resolutions before it, Saddam refused to act.
The Bush haters have one doctrine, and it certainly clouds the history of the Iraq of the situation.
Was it the wrong reason to go to war? Sure, hindsight is 20/20. Was it a good enough reason at the time? Yeah, given the WMD information that the world (not just the United States) was circulating, it probably was. Besides, I'd say 17 resolutions and repeated acts of non-compliance should have been enough for the world to step up and remove the guy. That we didn't shows world impotence and all that human rights stuff is just smoke and mirrors.