The crux of the argument
The posts on this board comparing WWII and Iraq are timely in that Bush did the same today.
"If that region is abandoned to dictators and terrorists, it will be a constant source of violence and alarm, exporting killers of increasing destructive power to attack America and other free nations," Bush said. "If that region grows in democracy and prosperity and hope, the terrorist movement will lose its sponsors, lose its recruits and lose the festering grievances that keep terrorists in business." (emphasis mine)
I happen to believe this.
Bush speech