Here is a link to the latest Frontline special on ISIS. As normal, it is very well done. It is pretty graphic, so I don't recommend watching if you have the kids in the room. ISIS are clearly criminally insane, but this special presents a balanced view and demonstrates that the Shi'a death squads are almost as evil as ISIS.

http://www.pbs.org/wgbh/pages/frontl...d=2495&elqat=1