CNN's Matthew Chance explores why some Kremlin critics such as Boris Nemstov, Alexander Litvinenko and Anna Politkovskaja were killed.
원문출처 : http://www.cnn.com/videos/world/2017/02/24/putin-critics-strange-deaths-sje-orig.cnn
원문출처 : http://www.cnn.com/videos/world/2017/02/24/putin-critics-strange-deaths-sje-orig.cnn