A profile of Mexican muralist David Alfaro Siqueiros, one of the great artists of the 20th century. According to many critics, Siqueiros stands second only to Pablo Picasso in his influence on 20th century painting. As one of the primary advocates of modern public art, Siqueiros was one the first muralists to paint on the exterior of buildings to bring the art closer to the people. Siqueiros made his name on the world stage: he painted murals in Mexico, the U.S., Cuba, Chile, and Argentina; fought as a soldier in the Mexican Revolution and the Spanish Civil War. Siqueiros was a controversy-stirring revolutionary and lifetime activist who lived with theatrical flair and painted on an epic scale.