In dealing with states that are outright criminal, the United States may at times need to take unilateral action to protect its citizens, its interestes, its integrity. This need not take as dramatic a form as our invasion of Panama and arrest of General Manuel Noriega, though it would be unwise in dealing with criminal states to rule out that option a priori.
– Senator John Kerry, The New War, 1997
If the title isn’t enough of a notice, I’ll state again, that this is a section in a chapter where multilateralism is noted as an important way to go. But if you are wondering why it was so easy for so many in the senate to vote in favor of an Iraq invasion, it’s worth considering that many of them were on the same page before 9/11. That is, it wasn’t just an irrational hyper-nationalism brought on by the attacks.