Calder Walton writes that the use and abuse of intelligence is one of the most contested and scrutinized subjects in contemporary news and current affairs. By contrast, for a student of history who is eager to understand the similarities and differences between clandestine operations today and those in the past, there are yawning gaps in the literature and the classroom when it comes to intelligence, U.S. foreign relations, and international relations. These gaps exist even in some of the latest and most authoritative publications, as well as the history classes of major U.S. universities.