RM: Well, I believed it then, I believe it today. The only way we were able to obtain agreement on the Anti-ballistic Missile Treaty -- and we began working toward that by contacts with the Russians the Soviets in November 1966, the Treaty negotiation didn't really begin until late 1968 -- , the only way we were able to obtain the Anti-ballistic Missile Treaty was to prove to the Soviets that we couldn't limit offensive nuclear forces, the Strategic Arms Limitation Treaty, unless we had a companion limit on defensive forces. Just think now, if you're trying to ensure you have a second-strike capability and you decide you need, let's say, a thousand minute men for that and then they put in a defense. If you had a second-strike capability before they put in the defense, after they put in the defense you've got to increase your offence, otherwise you've lost your deterrent. So we finally proved that to the Soviets and that understanding ultimately led to these two treaties - the Anti-ballistic Missile Treaty and the Strategic Arms Limitation Treaty. The Offensive Force Limitation Treaty could not stand without the Defensive Force Limitation Treaty.

RM: Yes..

RM: It's not mad! (laugh) Mutual Assured Destruction is the foundation of deterrence. Today it's a derogative term , but those that denigrate it don't understand deterrence. If you want a stable nuclear world -- if that isn't an oxymoron -- , to rephrase it, to the degree one can achieve a stable nuclear world, it requires that each side be confident that it can deter the other. And that requires that there be a balance and the balance is the understanding that if either side initiates the use of nuclear weapons, the other side will respond with sufficient power to inflict unacceptable damage. Mutual Assured Destruction. So Mutual Assured Destruction is the foundation of stable deterrence in a nuclear world. It's not mad, it's logical.

RM: Well, .. looking back on it, I think we may have exaggerated the threat from the east, the Soviet threat, ... I'm certain that in connection with the Vietnam war, for example, we misunderstood the degree to which the dominoes -- using President Eisenhower's reference -- , we misunderstood the degree to which the dominoes might fall as a result of the loss of south Vietnam. But having said that, one shouldn't fail to recognize - and during my 7 years as Secretary, on 3 occasions we -- and I include you -- , came very close to war with the Soviet Union and the Warsaw Pact. , I'll just mention very quickly. , in the summer and fall of 1961 when the Soviets put intense pressure on West Berlin, sought to in a sense "take" West Berlin from NATO, we came very close to military conflict then. Again in October 1962 over Cuba, when they introduced , missiles into Cuba.. and what we have learned since, when they actually introduced tactical nuclear warheads into Cuba, at a time when RCI was reporting there were no nuclear warheads.... we had photographs of launchers but the CIA said there were no nuclear warheads on the island of Cuba. We now know there were roughly a hundred and sixty two including tactical nuclear warheads and at that time had Khrushchev not, on Sunday the 28th of October 1962, announced he was withdrawing those missiles, on the following day or so, the majority of President Kennedy's military and civilian advisers would have recommend (sic) attack including invasion of the island of Cuba, not knowing that that invasion almost surely would have been confronted with the use of nuclear weapons. We came very close. You came very close to nuclear war at that time. Again, in June 1967, the Six-Day War in which between Israel and Egypt. And as a part of that the hotline was used for the first time and one of the messages from Kosygin to President Johnson was 'if you want war, you'll get war'. These were very tense times. So while I think, in hindsight, we exaggerated the threat at times, and we certainly misunderstood the objectives of the Soviets and I think the Chinese, nonetheless we faced very real threats.

RM: That's a very good question and I hope your program will throw some light on it. I would phrase the question slightly differently. It isn't so much 'was it necessary' but was the threat and the danger to the West as great as we believed at the time? And if we had thought it to be.. being perhaps more realistic, we'd thought it to be less or different could we have acted differently in the West with advantage in economic or social terms or less risk of a military confrontation. And I don't have the full answer to that. It's a question that deserves to be reviewed. I've tried to review it to some degree in relation to Vietnam in a book I published, .. as a matter of fact, it's just been published in paperback as we're talking, in retrospect.

RM: Thank you.

RM: OK, OK! (laugh)

END OF INTERVIEW WITH ROBERT McNamara