Sometime at the height of the Cold War, the American satirist-singer Tom Lehrer, in one of his many mock apocalyptic songs, mused about nuclear proliferation in a number titled Who's Next? After ridiculing the original sinners, Lehrer took a shot at prospective candidates for the atomic bomb. Then Indonesia claimed that they/ Were gonna get one any day/South Africa wants two, that's right /One for the black and one for the white/ Who's next? he lampooned, before turning to the Middle East. Egypt's gonna get one too/ Just to use on you know who/ So Israel's getting tense/ Wants one in self defense/ "The Lord's our shepherd, " says the psalm/ But just in case, we better get a bomb!" Perceptive though he was about the overall subject of proliferation, Lehrer got some countries, and the sequencing, wrong. India and Pakistan were not on his list, nor was North Korea. Indonesia didn't go near the bomb and South Africa wound up its weapons program.