Seymour Hersh April 8, 1937 2.8 Known For Movie Known For Shadow World Oct, 2016 EN 0 mins 7.2 War on Whistleblowers: Free Press and the National Security State Apr, 2013 EN 0 mins 7.8 The Man Nobody Knew: In Search of My Father, CIA Spymaster William Colby Sep, 2011 EN 0 mins 6.4Known For Tv Known For The Dick Cavett Show Jun, 1968 EN 0 seasons 6.6