In 1981 when the Israelis bombed the Baghdad Nuclear Reactor, the world condemned the action, the US stopped some arms shipments to Israel for a while (although most of the west tacitly approved). By the time the GUlf war came around they were certainly glad it had been done. (of course why did an oil rich nation need a nuclear reactor)(if it was 1981 and we could discuss, whether the Israelis should go in and take out the reactor, I wonder what the general consensus would be) (of course it is totally different than attacking a country...)
I dont have an answer as to whether or not the US should attack or depose Saddam, the opportunity was there in 91 but supposedly they didnt want to leave a power vacuum, (and have to deal with setting up or partitioning a state)
Then again, at the end of ww2 the US occupied Japan and helped establish a democratic and stable nation.
(maybe they should use the E-bomb (if it exists) supposedly being developed by the Brits which sends out a massive electromagnetic pulse and knocks out electrical systems etc. without any human casualties)
Last October there were discussions on whether or not the US should go into Afghanistan. A lot of people strongly opposed it, because its a quagmire or the history (no ones ever conquered Afghanistan etc), although I predicted (correctly) that the Taliban would collapse within 2 months. WHile there were many innocent lives lost, I think most Afghanis are better off, and there is now an attempt to establish and stabilize a govt.