Trying to stop suiciders -- which we're doing a pretty good job of on occasion -- is difficult to do. And what the Iraqis are going to have to eventually do is convince those who are conducting suiciders who are not inspired by Al Qaeda, for example, to realize there's a peaceful tomorrow.
If you want a model for what is possible, if you want to see how to build a peaceful and prosperous and dynamic society, then look at Berlin and look at Germany.