_____________ grew increаsingly rаdicаlized in the 1930s fоllоwing such high-prоfile examplesof American racism as the 1931 Scottsboro trial in Alabama. He travelled to the Soviet Union in 1932 to work on an unfinished film about race in the American South and published in leftist publications associated with the American Communist Party, the only political party at the time to oppose segregation.