A letter from the Guerrilla Art Action Group to Richard Oldenburg

A communiqué from the activist artists' group the Guerrilla Art Action Group addressed to the director of the Museum of Modern Art, New York, in which it defends and explains the act of Toni Shafrazi, the artist who spray-painted "Kill Lies All" on the centre of Guernica on 28 February 1974 in protest against the US bombing of the Vietnamese village My Lai.