A shadow of itself -- A new force (1902-1908) -- The first decade (1909-1918) -- Red webs and normalcy (1919-1933) -- Hollywood (1933-1945) -- The cold war FBI (1945-1961) -- A secret society (1961-1972) -- A haunted Bureau (1972-1978) -- Exorcising the ghosts (1978-1993) -- Louis Freeh's FBI (1993-September 11, 2001).