In “Crabs in a Bucket,” a forthcoming book, the Somali author Nuruddin Farah likens Ethiopian politics to a destructive Groundhog Day. Farah, who is seventy-six, grew up in a part of Somalia that was ceded to Ethiopia by the colonial British after they ousted the Italians in the Second World War. “Think of a demolition site when you think about Ethiopia, a country under constant rebuilding, one whose laws are often dismantled to accommodate the new ruler, and whose peoples’ nerves are frequently shredded before another regime gains power, only to demolish what has gone on before,” Farah writes. “Ethiopian leaders are famous for telling big and small porky pies to their fellow citizens and to the rest of the world; they know how to start conflicts that lead to wars, not how to resolve conflicts.”