(4th LD) U.S. Apache Helicopter Crashes SEOUL, Feb. 26 (Yonhap) -- A U.S. Apache helicopter crashed into a hill in northern South Korea Saturday, killing one crewmember and critically injuring another, a spokesperson for the U.S. military said. The AH-64D Longbow Apache attack helicopter went down during a routine training exercise near its military base in Paju, north of Seoul, said Kim Yong-kyu, a spokesman at the U.S. military command in Seoul