What's behind the Islamic State's propaganda war

Huffington Post :: The Islamic State militant group produces a lot of propaganda, advertising the brutality of its punishments and promising an idyllic life in areas under its control with a steady stream of videos, photos and even music. The Quilliam Foundation, a U.K.-based counter-extremism think tank, has been digging into the strategy behind the propaganda. 

Read Charlotte Alfred, www.huffingtonpost.com