Probably -- but we don't want it. Besides, it wan't really a fair fight -- I don't call a playground bully beating up on a whip a fair fight either. In this case we were the bully and Sadaam was the wimp.
The wimp however started the fight, so it's no problem with me that it wasn't fair. If the wimp is stupid enough to kick the bully in the back and he gets what he's got coming to him that's what he deserves.
Saddam kicked the US and the entire world since 1992, it took until 2003 until someone said "enough's enough" and kicked back.
And indeed, the US could keep Iraq going on historical precedent, but they don't want it.
Too much sand, too much trouble (Iraq is the cradle of civilisation, if by civilisation you mean organised warfare and political assassination).