persons obsessed by nihilistic philosophy and Aryan superiority thory caused the world the horror of two world wars. And none of these theories are associated with religion or any God rather they were atheistic. With those persons the ideologies also are gone thogh the world had to pay millions of lives. But Islam's story is different. The justifications for violence, killing, looting, hatred all comes from the so called "one true God" and the "last prophet". This will not go away with some persons. It is here to stay as long as this religion is here. Got the difference?