This book unveils the unknown shaking inside story of the FBI for the first time! It reproduces the supreme art of espionage, intelligence and power! Why can Hoover occupy the throne of the FBI for 48 years? Whereby can he make the eight presidents of the United States and sixteen ministers of justice fear of him? Who is the evil backstage manipulator behind the Kennedy assassination? What shaking inside story is hidden behind the Reagan assassination? Why cant FBI find out the murderer even working together with CIA? What is the reason for Nixons quitting the scene? Is the Watergate Affair doomed? Why is FBI willing to act as a scapegoat? How does FBI pull Martin Luther King down the altar? Is FBI the real executioner of the civil rights movement in the United States? Is Ben Laden really dead? The FBI is informed of intelligence, why does it fail to stop the ""9 11"" tragedy? Even to this day, why does the terrorism still cast a shadow over the United States of America? As the founder of the FBI, Hoover plays the art of espionage, intelligence and power to the limit. Even though it undermines democracy, even thought it endangers freedom, the FBI still has no fear of making threatening gestures in every corner of the world with confidential information as a tool. After careful investigation, referring to the latest declassified documents of more than 70000 pages, collecting Hoovers top secret files and oral record of more than 200 secret agents of long-term work with Hoover, the chief reporter of ""New York Times"" Tim Weiner describes the ups and downs of the life of Hoover from the most objective and real perspective. Why is the halo of FBI fading away? What role will FBI play in the world distribution of the United States? Will Hoovers been reproduced? This book will unveil the riddles for you one by one.