Preview: Nuclear Weapons: 1962: Escalation: Conversation with Professor Serhii Plokhy, author of "Nuclear Folly: A History of the Cuban Missile Crisis," reminding that the two sides in a nuclear weapon confrontation do not have good information about the

Preview: Nuclear Weapons: 1962: Escalation: Conversation with Professor Serhii Plokhy, author of "Nuclear Folly: A History of the Cuban Missile Crisis," reminding that the two sides in a nuclear weapon confrontation do not have good information about the scale of the threat. The Kennedy Administration did not know that nuclear-tipped torpedoes and also tactical nuclear warheads were deployed.  More tonight.

1920 Cuba