Installation view of An Incomplete History of Protest: Selections from the Whitney’s Collection, 1940–2017 (Whitney Museum of American Art, New York, August 18, 2017–). From left to right, top to bottom: Pro-Arts, Inc., Peace Needs No Excuse, 1970; Women Strike for Peace, Stop Bombing, c.1967–70; Irving White, Our foreign policy must always be an extension of this nation’s domestic policy…, 1968; Atomic Energy Group, “The streets of our country are in turmoil…”, 1970; Unidentified artist, Cry Freedom, 1967; Women Strike for Peace, End the Draft!, c.1967–70; Josephine Meckseper, March on Washington to End the War on Iraq, 9/24/05, 2005. Photograph by Ron Amstutz