The relevance of this episode is particularly striking. It could easily have been written to describe the world today, 48 years later. The only clues to the contrary are the specific references to a week old official ceasefire in Vietnam, and the recent Supreme Court decision on Roe v Wade.
A few minutes in, a defect in the original tape recording resulted in the loss of a few seconds of audio. Occasionally inevitable price of copying these old tapes.