First, find a spot of land, large enough to hold large armies, then gather all those who want to kill others in the name of religion and let them go at it. Give them every weapon at their disposal except nuclear bombs. When the killing is done and the winners emerge, kill the winners. The children left by those who died who haven't been indoctrinated into the belief that if you're not of their religion, you must die, then rehabilitate them to treat their fellow man as they themselves want to be treated. Now tell me why this wouldn't work. Author of the idea, GK.