Tonight’s was contained in the final episode of Radio 4 Book of the Week: The letters of John F. Kennedy.
One of the letters read in the programme was from J. K. Galbraith to Kennedy, demolishing a draft pamphlet meant to advise the American population how to protect themselves from nuclear fallout in the event of war. The combination of wit and chilling realism made it a small masterpiece. I particularly enjoyed his ironic contention that the advice would help save Republicans, while abandoning the Democrats (who voted for Kennedy) to their deaths.
Still on BBC iPlayer, but only for a couple more days.