One was a historian and assistant to John Kennedy, another was the chef who first introduced French cuisine to American households, and a third was the father of Stewart Copeland, drummer for the band The Police. In their every day lives they had nothing in common but Arthur Schlesinger Jr, Julia Childs and Miles Copeland shared a secret life - serving in an international spy ring at a time when Hitler was threatening the world. Their work and that of thousands of other members of the Office of Strategic Services, an early version of the CIA, will be revealed today...