What propelled the explosion of the vibrant post-war Chicano music culture in America and especially in Los Angeles? Larry Mantle talks with two experts who explore this question, one in print and the other in documentary form. Jon Wilkman has produced, written and directed a one-hour PBS documentary which tells the little known story of how young Mexican Americans in East Los Angeles, caught between two cultures, found their own identity through rock 'n' roll music. Anthony Macias is the author of a new book that examines the complexity of Mexican American urban culture in postwar Los Angeles as seen through the evolution of dance styles, nightlife and popular music.