Herman Kahn became known to the public following his 1960 "On Thermonuclear War," which considered nuclear strategy as an application of game theory. The book promoted deterrence, including the capability to launch a second strike, and the need for "Thinking About the Unthinkable," the title of his 1962 book. By then he had left RAND to co-found the Hudson Institute. Kahn, who died in 1983, was one model for Dr. Strangelove in the eponymous movie. Image courtesy of the RAND archives.