GENEVA, Aug 2 (Reuters) - Uganda could be the next country hit by alarming malnutrition rates due to drought which has already sparked famine in southern Somalia and hunger in Kenya, Ethiopia and Djibouti, the United Nations warned on Tuesday.Pockets of food insecurity have already been detected in drought-hit northern areas of Uganda, east Africa's third largest economy, the U.N.'s Food and Agriculture Organization (FAO) said.Read More... More on Uganda