The Duelfer Report concluded that Saddam would have reconstituted his WMD if he had remained in power. Most likely that would have cost MORE American lives.
Saddam was thumbing his nose at the UN, the US, Israel and Kuwait. I don't see why it's responsible to leave someone like that in power; if not taken out other countries would have gotten the idea that they could do the same.
Is it responsible to leave someone like Obama in power?