Disgusting.
BTW, everybody needs to stop acting like a fuc.king tool here. Politics has as much a role to play in violence as does religion. If you think a 1000s of year old book has the power to kill, then your an ignorant douche(as well as incredibly naive).
The only reason people keep on bringing up 'Islamic' extremism is because the almighty america and her ***** Europe have been attacked in the recent past. There were suicide bombers in sri Lanka's civil war, and horrific ethnic violence in Burma, but who gives a shit if its not Americas enemy.
I personally don't like religion, but the causes of violence are much more complex.