"A major new biography of J Edgar Hoover that draws from never-before-seen sources to create a groundbreaking portrait of a colossus who dominated half a century of American history and planted the seeds for much of today's conservative political landscape. We remember him as a bulldog--squat frame, bulging wide-set eyes, fearsome jowls--but in 1924, when he became director of the FBI, he had been the trim, dazzling wunderkind of the administrative...