CNN's Alexandra Field explains how North Korea's missile program is becoming increasingly sophisticated.
원문출처 : http://www.cnn.com/videos/world/2017/03/07/north-korea-missile-program-one-thing-sje-orig.cnn
원문출처 : http://www.cnn.com/videos/world/2017/03/07/north-korea-missile-program-one-thing-sje-orig.cnn