The Nazis and the Khmer Rouge went to great lengths to hide their crimes against humanity. But ISIS posts its crimes on social media with seemingly no thoughts for the consequences.
원문출처 : http://edition.cnn.com/2015/02/16/opinion/bergen-isis-enemies/index.html?eref=edition
원문출처 : http://edition.cnn.com/2015/02/16/opinion/bergen-isis-enemies/index.html?eref=edition