From Horwitt’s Let Them Call Me Rebel:
…in the spring of 1972, at Tulane University…students asked Alinsky to help plan a protest of a scheduled speech by George H. W. Bush, then U.S. representative to the United Nations – a speech likely to include a defense of the Nixon administration’s Vietnam War policies. The students told Alinsky they were thinking about picketing or disrupting Bush’s address. That’s the wrong approach, he rejoined, not very creative – and besides causing a disruption might get them thrown out of school. He told them, instead, to go to hear the speech dressed as members of the Ku Klux Klan, and whenever Bush said something in defense of the Vietnam War, they should cheer and wave placards reading, ‘The KKK supports Bush.’ And that is what they did, with very successful, attention-getting results.
