Young J. Edgar On June 2, 1919, bombs exploded simultaneously in nine American cities, and the nation suddenly found itself facing a new threat-radical terrorism. Then-Attorney General A. Mitchell Palmer vowed a crackdown to be led by his youngest assistant, J. Edgar Hoover. Under Palmers wing, Hoover helped execute a series of brutal nationwide raids-bursting into homes without warrants, arresting over ten thousand Americans-and assembled secret files on thousands ... >Voir plus