"Maybe is starts with being told that Christians and Muslims can't live together. Maybe it moves on to being told that Muslims everywhere in the world are under attack. Sometimes it's being told that the terrible attacks that took place in this city on 9/11was somehow a Jewish conspiracy. Then it goes on to being told that violence is sometimes justified, that a suicide bomb, if it happens in Israel, maybe that's not so bad and so you get an extremist mindset that then moves on to the belief that taking part in violent jihad or joining Isil or joining any of these other franchises, al Shabaab or others, is justified.