In 1941 the magazine publishing titan Henry R. Luce urged the nation's leaders to create an American Century. But in the post-World-War-II era proponents of the American Century faced a daunting task. Even so, Luce had articulated an animating idea that, as William O. Walker III skillfully shows in The Rise and Decline of the American Century, would guide United States foreign policy through the years of hot and cold war. The American...