The Nazis and the Khmer Rouge went to great lengths to hide their crimes against humanity. Why does ISIS do the exact opposite?
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