Atrios has posted an Art Buchwald column written in 1963. Buchwald pretends (I think) to have inside information from "Serge the Russian Spy" about the Soviets' best-ever plot to destroy America:
The only people willing to wreck the United States government, I discovered, were the extreme right-wing groups. They were being ignored, and yet they were the key to all internal subversion. I laid out a plan. I would have my agents organize a program working through the extreme right wing which would stand the United States on it's head.

First I would get the right wing to accuse President Eisenhower of being a Communist. Then I would get them to call their own high government officials traitors. Then I would see that the right wing attacked American United Nations representatives. I also would convince the right wing that Russia didn't have atomic weapons.

Then I would encourage rumors that everyone in the State Department was either a Communist or a homosexual. I gave order to wreak havoc in the armed services by turning military officers against civilians. I even proposed they impeach Chief Justice Warren of the Supreme Court. I laid out different attacks on anyone who advocated better education or health facilities in the United States. And the topper was that anyhone who disagreed with this would be accused of being a card-holding Communist. -- Read the whole thing!