Pham Xuan An was a brilliant journalist and an even better spy. A longtime correspondent for Time and friendly with all the legendary reporters covering Vietnam, he was an invaluable source of news and font of wisdom on all things Vietnamese. At the same time, he was a masterful double agent, a North Vietnamese intelligence agent whose secret reports were so admired by Ho Chi Minh that he clapped his hands with glee on receiving them and exclaimed, "We are now in the United States's war room!" An inspired shape-shifter who kept his cover in place until the day he died, Pham Xuan An ranks as one of the preeminent spies of the 20th century.