Some questions never die. One of them is, "Who's a Jew? What's a Jew?" Related to that is, "Are the Jews a race?" The question has been revived by Whoopi Goldberg, controversially. I have a memory. It's 1986, and I'm watching C-SPAN, as one did. Reagan has nominated Associate Justice William Rehnquist to be chief justice. But Rehnquist has a problem: He owns a property with a "restrictive covenant," barring the sale of the property to "any member of the Hebrew race."