The real reason for this war—which was never stated—was to burst what I would call the "terrorism bubble," which had built up during the 1990s.
This bubble was a dangerous fantasy, believed by way too many people in the Middle East. This bubble said that it was OK to plow airplanes into the World Trade Center, commit suicide in Israeli pizza parlors, praise people who do these things as "martyrs," and donate money to them through religious charities. This bubble had to be burst, and the only way to do it was to go right into the heart of the Arab world and smash something—to let everyone know that we, too, are ready to fight and die to preserve our open society. Yes, I know, it's not very diplomatic—it's not in the rule book—but everyone in the neighborhood got the message: Henceforth, you will be held accountable. Why Iraq, not Saudi Arabia or Pakistan? Because we could—period. Sorry to be so blunt, but, as I also wrote before the war: Some things are true even if George Bush believes them.
Unless we successfully partner with Iraqis, though, to build a new and more decent context, that terrorism bubble will eventually come back tenfold. We must get this right. Yes, I know, it may all turn out to be a fool's errand. A decent Iraq may be impossible. But I would rather go down swinging as an optimist than resign as a pessimist. Because if there is no way to produce governments that can deliver for their young people in the Arab world, get ready for a future full of Code Orange and Code Red.
source: http://www.***boat.com/forums/showthread.php?t=60055