Acute malnutrition is surging among children displaced by drought and conflict in a part of central Somalia teetering on the edge of famine, according to a survey conducted by humanitarian agencies. The United Nations warned at the beginning of September that two districts were projected to face famine between October and December, with more than half a million children in Somalia at risk of dying from malnutrition. A screening conducted from September 19-24 by U.N. agencies and other humanitarian groups in camps for internally displaced people in the Baidoa district found the situation quickl…