Today’s devil incarnate is the militia known as the Islamic State. So far it has done everything in its power to deserve the title. But it is only the latest in a long sequence of adversaries that were considered by the West as the embodiment of evil, never entirely without reason. It seems that in the  western consciousness there is always a slot for another Evil One. But why should IS so obligingly play the part?

The Islamic State - Humiliation, Shame, and Rage in Fundamentalism