A World of EnemiesA sobering account of how the United States trapped itself in endless warsabroad and at homeand what it might do to break free. Over the past half century, Americans have watched their country extend its military power to what seemed the very ends of the earth. America's might is felt on nearly every continentand even on its own streets. Decades ago, the Wars on Drugs and Terror broke down the walls separating law enforcement from military operations.