Here, lying in a stained carton, are notes on a refugee camp in Tanzania, where surviving Tutsis and their Hutu enemies lived side by side in blue tarp tents. It is 1994. The notes record that there are people everywhere, milling and moving in short parades on the main path in the camp, hastily constructed by the United Nations High Commissioner for Refugees. Women wear colorful cloths, khangas, and carry yellow plastic containers of water on their heads. Children and old men push up against one another, as if at a bargain sale. They hold portable radios to their ears. A man in a brown rain hat drags a reluctant goat by a rope. White smoke mixes with the smells of fresh earth and excrement. At an outdoor butcher shop, a cow’s bloodied horn lies beside the animal’s astonished head. I greet a group of young Hutus in French. “Did you participate in the killings?,” I ask. “We did nothing,” one says. “Did you see others do the killing?” He says, “We saw nothing.” I ask, “How many Tutsis are left in Rwanda, do you think?” A teenage boy wearing a green baseball cap grins, and slowly draws the side of his index finger across his throat.