A majority of the world's nations have just joined together to call for the elimination of all nuclear weapons. We should listen.
원문출처 : http://www.cnn.com/2017/07/07/opinions/un-nuclear-weapon-ban-opinion-helfand-bivens/index.html
원문출처 : http://www.cnn.com/2017/07/07/opinions/un-nuclear-weapon-ban-opinion-helfand-bivens/index.html