The photograph of three men spattered with red paint, their arms linked, marching to protest the Vietnam War, is an icon of the 1960s movement for social justice. David Dellinger is on one side, Robert Moses on the other. In the middle is Staughton Lynd, chairperson of the first march on Washington against the war, and former director of the Mississippi Freedom Schools. Thirty years later, Staughton Lynd here reaffirms ideas central to the New Left...