W. Kamau Bell joins Terry Gross to talk about his ancestry and spending time with the late Anthony Bourdain. His new Netflix special is ‘Private School Negro,’ and his CNN series ‘United Shades of America’ is in its third season. Jazz critic Kevin Whitehead reviews John Coltrane’s album ‘Both Directions at Once: The Lost Album.’ Also, Frank Newsome, a former coal miner who has black lung disease, started singing when he joined a church in 1963. He sings a cappella in a lined-out hymn style — one of America’s oldest music traditions.