Fifty-one years ago today, in a speech before the Council on Foreign Relations, an influentual New York-based think tank, US Secretary of State John Foster Dulles outlined what became known as the policy of massive retaliation. He explained to his listeners that the US would no longer allow itself to be drawn into conventional regional conflicts such as the Korean War--or, for that matter, Vietnam--but would reserve the right to respond to Communist aggression with "massive rataliatory poser" applied at places and with means of its own choosing--or, in other words, nuclear weapons might be used directly against the Soviet...