Three dead at Afghan hospital after U.S. air strike

By Hamid Shalizi and Andrew MacAskill KABUL (Reuters) - The U.S. military on Saturday acknowledged it could have been responsible for an air strike that hit a hospital run by medical aid group Medecins Sans Frontieres in the Afghan city of Kunduz, killing at least three people and leaving more than 30 missing. Fighting has raged around the Afghan provincial capital this week, as government forces backed by American air power seek to drive out Taliban militants who seized the city in the biggest