PBS Network - Nova - "In the Event of Catastrophe" [Nuclear War & Civil Defense]

Here's a complete edition of the Nova "In the Event of Catastrophe" as aired over the PBS Network - and in Chicago, would have been transmitted over WTTW Channel 11. This deals with civil defense preparedness in the event of nuclear war, whether anyone could survive one, and the contrasting steps taken by both the United States and the Soviet Union.