November 20, 2008: Query (letter)
December 21, 2000: An Open Letter to the President (letter)
July 20, 2000: United States v. Leonard Peltier (letter)
May 13, 1993: Murder in Turkey (letter)
November 8, 1990: Writers in Prison (letter)
February 18, 1988: Release Juris Bumeisters (letter)
June 11, 1987: Against Loans to Chile (letter)
August 14, 1986: Arrests in Poland (letter)
May 29, 1986: Crackdown in Hungary (letter)
December 6, 1979: Free the Czechs (letter)
December 7, 1978: In a Cuban Prison (letter)
June 27, 1974: Terror in Chile (letter)
May 30, 1974: Terror in Chile II: The Amnesty Report
April 18, 1974: Plight of Moroz (letter)
February 21, 1974: Appeal for Abdul Malik (letter)
December 13, 1973: Torture Conference (letter)