"McNamara, characteristically, transformed this reliance on irrationality into a new kind of rationality in the aftermath of the Cuban missile crisis. He now repudiated his earlier ideas of targeting only military facilities: instead each side should target the other’s cities, with a view of causing the maximum number of casualties possible. The new strategy became known as “Mutual Assured Destruction”—its acronym, with wicked appropriateness, was MAD. The assumption behind it was that if no one could be sure of surviving a nuclear war, there would not be one. That, however, was simply a restatement of what Eisenhower had long since concluded: that the advent of thermonuclear weapons meant that war could no longer be an instrument of statecraft—rather, the survival of states required that there be no war at all."