That's why killing them first if imperative. And I'm just not sure that creating a democracy in Iraq, Saudia, Iran, and wherever else you want to name prevents the problem you've outlined. At least no one has really explained where I "buy it" how a democratic middle east solves the problem.
If you democratize the middle east, there is less room for one dictator seething with hate against the US to oppress, blame and otherwise whip into a frenzy those under his boot.
If people believe there is hope for a better future, then a career as a homicide bomber seems a little self defeating.
Furthermore, US relations with democratized govenments would provide strategic advantage in the region in our effort to "kill them first". Intelligence and other support, publically acknowledged or not is enhanced.
-Eddie01