Video Shows U.S. Allies in Syria Torturing Prisoners -- The Daily Beast

We don't know what the soldier with the knife did after the camera was stopped. The video was horrid enough. It shows soldiers in the uniforms of the U.S.-allied People's Protection Units (YPG) kicking and stomping on two young Arabs captured near Raqqa. One of the detainees is lying prone under a metal chair, which a YPG soldier sits on, its leg braces grinding into the captive's back. ...
http://www.thedailybeast.com/video-shows-us-allies-in-syria-torturing-prisoners