REDWOOD CITY, Calif. (Reuters) - A U.S. soldier who shot dead two Iraqis during a riot at Baghdad's Abu Ghraib prison and fired rubber bullets at inmates said on Friday some force was needed to run a wartime prison. "A few people would probably say that I jumped at the opportunity on taking a life," said Sgt. Terry Stowe, 44, a National Guardsman with the 870th Military Police Company. On Friday, Defense Secretary Donald Rumsfeld apologized over Abu Ghraib prison abuses in testimony before Congress. A scandal exploded last week with the release of photographs showing abuse of Iraqi prisoners...