Collaborations during the Great Depression between the Mexican artist and Communist activist Diego Rivera and institutions in the United States and Mexico were fraught with risk, as the artist occasionally deviated from course, serving and then subverting his patrons. Catha Paquette investigates controversies surrounding Rivera's retrospective at the Museum of Modern Art in New York City, his Rockefeller Center mural Man at the Crossroads, and the Mexican government's commissioning of its reconstruction at the Palace of Fine Arts in Mexico City. She proposes that both the artist and...