Other prominent alumni include anthropologists David Graeber and Donald Johanson, who is best known for discovering the fossil of a female hominid australopithecine known as "Lucy" in the Afar Triangle region, psychologist John B. Watson, American psychologist who established the psychological school of behaviorism, communication theorist Harold Innis, chess grandmaster Samuel Reshevsky, and conservative international relations scholar and White House Coordinator of Security Planning for the National Security Council Samuel P. Huntington.