Barbara Novak remembers her big brother as an easygoing, good-humored guy who pushed her on a swing set and hoisted her on his shoulders when he came home on military leave. "He was like a lot of young men at the time -- he wanted to serve his country," said Novak, 64, who lives in Livermore. "He had a lot of pride, and we were all very proud of him." But on July 12, 1950, Pvt. Nicholas John Hansinger, a medic in the Korean War, was captured and marched to a prison camp in North Korea, where he apparently died...