He had been secretary of Labor, budget director and Treasury secretary, but is most famous as the nation's secretary of State at a time when the world was reeling from the Cold War: George Shultz's legacy of public service is notable not only for being only one of two to have held that many Cabinet posts, but also for his pivotal role in crafting President Reagan's foreign policy. Phil Taubman, author of "In the Nation’s Service: The Life and Times of George P. Shultz," paints the portrait of one of America's most consequential statesmen.