Since we were friends with Saddam in the eighties, it was hypocritical of us to kick him out of Kuwait and keep him from annexing Saudi Arabia. Even if he hates us now, is acquiring nukes, and has ties to terrorists we still can't attack him -- for some reason or another. I think there is a UN rule against attacking former friends for any reason or something.
Its too late to not attack Saddam now but we should have let him kill the Saudis.