I also hear your president say that war is the means of last resort and I think he means that. I met him last autumn and he assured me that they wanted to come through and disarm Iraq by peaceful means, and that's what we are trying to do as hard as we can.
Iraq did not spontaneously opt for disarmament. They did it as part of a ceasefire, so they were forced to do it, otherwise the war might have gone on. So the motivation has been very different.
On big issues like war in Iraq, but in many other issues they simply must be multilateral. There's no other way around. You have the instances like the global warming convention, the Kyoto protocol, when the U.S. went its own way.
The inspections started in 1991, right after the Gulf War. One of the conditions for the ceasefire was that Iraq had to do away with all of its weapons of mass destruction - biological, chemical and nuclear weapons and long-range missiles.
The South Africans decided that they would like to prove to the world they did not have any nuclear weapons and their decision was not doubted because it was the end of the Cold War, it was also the end of apartheid.