I'm not sure if this will be helpful or not, but I'll throw it out there.
I watched a wonderful movie last night called "Something that God made" on HBO. It not only showed Johns Hopkins new research on heart surgery, but it also showed racism from the 30's until about the 80's. The main character is African American, and the viewer watches what he goes through as he tries to get equality in the workplace. Although he's not an activist, but he does, in his own way, make a lot of changes!
Great movie. For more info PM me.