Death has this way of making truth-tellers seem harmless.
Alive, Martin Luther King provoked a president and divided a nation with his truth. Dead, he is an image on a commemorative place mat, his words safe enough for recitation by children.
This also holds, albeit to a lesser degree, for Malcolm X and Medgar Evers. Dead, they were no longer dangerous. "We took out all the radicality of their legacy," says Raoul Peck.
Mr. Peck is the director of "I Am Not Your Negro," a documentary built on 30 pages of notes James Baldwin wrote for a book he never finished, a meditation on race, America and his three murdered friends: Medgar, Malcolm and...