Christopher Andrew is Professor of Modern and Contemporary History and Chair of the History Department at Cambridge University, a former Visiting Professor of National Security at Harvard, a frequent guest lecturer at other U.S. universities and a regular host of BBC radio and TV programs. His books—which include Her Majesty’s Secret Service; KGB: The Inside Story (with Oleg Gordievsky); and For the President’s Eyes Only—have established him as one of the world’s leading authorities on intelligence history.