Decimation means the killing of every tenth person in a population, and in the spring and early summer of 1994 a program of massacres decimated the Republic of Rwanda. Although the killing was low-tech—performed largely by machete—it was carried out at dazzling speed: of an original population of seven million seven hundred thousand, at least eight hundred thousand were killed in just a hundred days. By comparison, Pol Pot’s slaughter of a million Cambodians in four years looks amateurish, and the bloodletting in the former Yugoslavia measures up as little more than a neighborhood riot. The dead of Rwanda accumulated at nearly three times the rate of Jewish dead during the Holocaust. Members of the Hutu majority group began massacring the Tutsi minority in early April, and at the end of the month dead Tutsis were easier to find in Rwanda than live Tutsis.