“ Since the basic assumption of this year's presentation was an attack in late 1963, the President asked about probable effects in the winter of 1962. Mr. Dulles observed that the attack would be much less effective since there would be considerably fewer missiles involved. General Lemnitzer added a word of caution about accepting the precise findings of the Committee since these findings were based upon certain assumptions which themselves might not be valid.
The President posed the question as to the period of time necessary for citizens to remain in shelters following an attack. ”