Jack Devine is one of the legendary spymasters of our time. He was in Chile when Allende fell; he ran Charlie Wilson’s war in Afghanistan; he had too much to do with Iran-Contra for his own taste, though he tried to stop it; he caught Pablo Escobar in Colombia; and he tried to warn George Tenet that there was a bullet coming from Iraq with his name on it. His new book, Good Hunting, is Devine’s guide to the art of spycraft and his belief in the CIA’s vital importance as a tool of American statecraft. Although it has been caricatured by Hollywood, lionized by the right, and pilloried by the left, Devine believes the CIA remains one of the least understood instruments of the United States government.