“When people criticize Zionists, they mean Jews. You’re talking anti-Semitism!” Martin Luther King was supposed to have said this at a dinner party in Cambridge, Massachusetts, shortly before his death. Critics claimed he could not have said this because he could not be placed in Cambridge at the time. They thus insinuated that the quote must have been invented by Harvard’s Seymour Martin Lipset, who reported it. The author relies on King’s papers to establish a firm address, host, date, and time for the dinner. But he also bring evidence (from FBI wiretaps) of King’s profound ambivalence about Israel’s 1967 victory. King supported Israel’s right to exist, but he thought Israel would have to disgorge its military conquests.