FBI Historian John Fox examines the career of J. Edgar Hoover, who served as FBI director for 48 years - from 1924 until 1972. Fox talks about Hoover’s role in domestic security, and the changing perception of Hoover as a result of decisions he made toward the end of his career. This speech is from the Raleigh Spy Conference, held at the North Carolina Museum of History in Raleigh, North Carolina.