Tinker, Tailor, Soldier, Spy (The Karla Trilogy, #1)

by John Le Carré

The art of the game—best described in J. C. Masterman’s account of the British double-cross system operated against Germany in wartime—is therefore a balancing act between what is good for the double agent in his role as loyal member of his service, and what is good for your own side in its unrelenting efforts to pervert that service to the point where it is doing more harm to the country that employs it than good; or, as Smiley has it, where it has been pulled inside out. Such an abject state of affairs was certainly reached by SIS in the high days of Blake and Philby, just as it was self-inflicted on the CIA by the paranoid influence of Angleton himself, who, in the aftermath of discovering that he had been eating out of the hand of the KGB’s most successful double agent, spent the rest of his life trying to prove that the Agency, like SIS, was being controlled by Moscow; and that its occasional successes were consequently no more than sweeteners tossed to it by the fiendish manipulators of the KGB. Angleton was wrong, but his effect on the CIA was as disastrous as if he had been right. Both services would have done much less damage to their countries, moral and financial, if they had simply been disbanded.