What do Stokely Carmichael, Harry Belafonte, Colin Powell, Sidney Poitier and Busta Rhymes have in common? And how are Beyoncé, Ava DuVernay, Barack Obama and Kamala Harris alike? None of the first set is descended from American slaves. All of the second are descended from slave-owners. Much of the media and the political establishment is pushing the idea of reparations for black Americans. But, as these lists show, it isn’t obvious who should get paid and who should pay. Consider the case of Kamala Harris. Should her Indian mother pay reparations to her Jamaican father for his partial ancestry from...