Beginning with responses to fascism in the 1930s and ending with protests against the Iraq wars, David McCarthy shows how American artists--including Philip Evergood, David Smith, H. C. Westermann, Ed Kienholz, Nancy Spero, Leon Golub, Chris Burden, Robert Arneson, Joyce Kozloff, Martha Rosler, and Coco Fusco--have borne witness, registered dissent, and asserted the enduring ability of imagination to uncover truths about individuals and nations. During...