I think that Dr. Rostow imposes upon the present situation a mistaken view of “dangers and challenges and possibilities.” As I understand him, he thinks of the war in Vietnam as a war against aggression or against “wars of national liberation” which, if successful, will help humanity to turn a corner and to enter upon a more stable and peaceful stage of history. On the contrary, this war causes us to miss opportunities to create some conditions for peace through agreements with the Soviet Union as the other major nuclear power, to improve through cooperation with the Soviet Union the actual institutions of world order represented primarily by the United Nations.