Wilderness of Mirrors
by David C Martin
It tells the story of James Angleton, the man in charge of counter-intelligence at the CIA, stopping people from infiltrating the organisation. There was a Russian defector in the 1960s, Anatoly Golitsyn, who went to the States and started talking and Angleton basically believed him when he said there was a mole inside the CIA. He tore the CIA apart looking for the mole and the question was: was he a KGB plant getting the CIA to tie themselves up in knots?
