For a man singularly obsessed with the perfidious Jews, you'd think John Mearsheimer would have the skill to keep his categories correct. For instance, in his latest death-to-Israel speech, he lists Ken Roth of Human Rights Watch as a "Righteous Jew," and Lester Crown, the Chicago businessman and Jewish leader, as a "New Afrikaner." But Anne Herzberg e-mails to report that Susan Crown, Lester's daughter, is on Human Rights Watch's Chicago committee, and that the Crown family foundation is a major donor to Human Rights Watch. So what does this make Lester Crown -- a Righteous Afrikaner? This is the problem with Jews -- so tricky!