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As the United States and other members of the P5+1 commence negotiations with Iran, it is worth recalling the classic analysis of Iran’s negotiating style sent in from the U.S. embassy in Tehran on August 13, 1979. The author of the cable, political counselor Victor Tomseth, and the man who authorized it, charge d’affaires Bruce Laingen, became hostages when the embassy was seized on November 4, 1979.