I saw 'I am not your Negro' (which the article is largely about) a couple weeks ago; it's fantastic. It's mainly am unpublished Baldwin piece on the deaths of MLK, Malcolm X and Medgar Evers read by Samuel Jackson.
There's a good deal of media and especially cinema criticism in the piece; looking at American culture through The eyes of it's film. The movie incorporates clips of many of the pieces referenced, ones I'm a generation to young to know, which helps bridge the generational gap. It's an excellent technique.
And the subject matter - extrajudicial killings of black men - is still extremely relevant, of course.