I worry about a situation where if radicals took control of a country like Iraq, they would have oil resources to use at their disposal to try to achieve their objectives. You can attack a nation several ways. One, you can get 19 kids to fly airplanes into buildings, or you can gain control of something a country needs and deny that country access to that, in this case, oil, and run the price of oil up, all attempting to inflict serious economic damage.
Finally, it's necessary for free societies to emerge -- free societies in the image of a country's own history and tradition. And why is it in our interest that that happen? There is a root cause, there is a reason why 19 kids got on an airplane to come and kill us, and that is because societies in that part of the world have bred resentment and lack of hope.
Thinkquest lists their ages as being between 20 and 38. Why is Bush calling them "kids"?