United States officials, African ministers, institutional investors, private financiers, and service and technology providers have gathered in Washington, D.C., for the 10th annual Powering Africa Summit. The United Nations World Food Program continues to warn of food shortages across southern Africa, with good rains arriving too late for farmers to plant crops. In Sudan, UNICEF says armed men are raping and sexually assaulting children, including infants as young as one, amid the nationwide conflict.