Broken: Popular historian Powers, biographer of J. Edgar Hoover, has produced a timely and nuanced history of the legendary agency that puts its current struggles in appropriate context. Beginning with the debate about the need for a federal detective force in the early 1900s, Powers traces the evolution of a small unit within the Justice Department into the G-Men of lore. . . . Powers succeeds in showing how the FBI's handling of terrorist threats prior to 9/11 was the direct result of the public backlash against Hoover's excesses and a desire to better respect civil liberties. His balanced and reasoned defense of recent director Louis Freeh, who has become a convenient scapegoat in the eyes of many, will spark renewed debate, especially as the recommendations of the 9/11 Commission and consideration of reforms of the intelligence community remain in the spotlight.