snip.... It's a comedy album photograph of a nearly naked Richard Pryor, dressed in a loincloth, with bones through his nose and beads around his neck like a stereotypical African bushman from an old "Tarzan movie." But there is a glare on the comedian's face on 1968's "Richard Pryor" album that seems to say, "I'm here and I'm going to change your thinking about race relations in every way possible." That's what Pryor, who died Saturday of a heart attack at age 65, did for people all across America in the 1970s, his breakthrough decade and a time when the...