Bundy:
I think it was because I
think McNamara turned to the criterion, not the theory of assured destruction, but to that
criterion as a way of measuring adequate survivable strategic forces because the theory of
counterforce fully applied was going to produce absolutely unmanageable requirements for
endlessly expanding strategic procurement. That in order to get that kind of capability, you
would simply never come to an end. And indeed the contest on both sides, if both sides has this
theory, was by definition one without limit. That's clear to me still that that's the case. And
he decided that he would adopt a different requirement that there be at all times a strategic
force such that even after receiving a first strike, even a surprise first strike from some
hypothetical enemy, nobody ever thought that this was what the Soviets would in fact do, but
nonetheless as a matter of elementary national prudence, we must be able to give that kind of
punishing retaliation that would be in effect be a sure destruction of the opponent. Now what
you mean by destruction, a matter that you can estimate in different ways, and McNamara did
estimate in his way, and I would say with an ample margin of safety. He added, of course, to
that, as far as I know throughout his time as Secretary a requirement that there be also some
capacity for limiting the total damage to the United States, which means in effect some level of
counterforce strength in addition. And beyond that, he never interfered with the settled policy
of the military of targeting military installations, and military capabilities and recovery
capabilities, and not cities as such. But of course the difficulty with that and it's a crucial
difficulty about the notion of nuclear warfare is that the military target sometimes the most
military target is also right in the middle of a large human population. The Pentagon, an
obvious military target. It's in the middle of greater Washington. The White House even more so.
And there have been studies of military attacks on Soviet targets which show that military
planners picking military targets may put, may want to put in the terrible event, as many as 60
warheads on Moscow. So what is that? Is that assured destruction? Or is that counterforce?