Islamic State's Most Barbaric Video Yet?

I think ISIS peaked in its barbarity when it failed to get underwater camera angles for that heinous cage drowning video, as bad as it was.

And some of the initial ISIS mass grave massacres were beyond comprehension, so I guess they're going back to them.

At London's Daily Mail, "Their sickest video yet: ISIS release footage of their biggest massacre in which prisoners were made to lay in mass graves before being machine-gunned to death."

And at Bare Naked Islam, "Islamic State (ISIS) in Iraq releases snuff film showing slaughter of hundreds of Iraqi men and boys gunned down like animals in ditches."

Actually, for my money the burned alive in a cage video remains the most horrific. It's certainly the most difficult to watch, even worse than the mass snuff clips. Here, "Jordanian Hostage Moaz al-Kasasbeh Burned Alive (VIDEO)."