A masked gunman opened fire outside the home of a Fatah official in Lebanon's largest Palestinian refugee camp on Thursday, seriously wounding his younger brother, camp security sources said. The likely intended target was Jamil Zeidan, a military official with Palestinian President Yasser Arafat's Fatah movement. He remained inside the house in the Ain el-Hilweh refugee camp and was not injured, the sources told Reuters. The gunman shot at Jamil's younger brother Osama Zeidan and a group of guards outside the house, hitting Osama in the head and neck. The guards returned fire, but the gunman escaped unhurt. Osama Zeidan,...