BAGHDAD, Iraq - Gunmen killed the son of Iraq's top judge Saturday as the country's prime minister-designate struggled to form a national unity government that could eventually open the way to stability. Attacks outside Baghdad killed five Iraqis and a U.S. soldier, part of the undercurrent of daily violence marring the slow-moving political process. Frustrated with such violence in the south, the governor of oil-rich Basra, Mohammed al-Waeli, asked his provincial council to fire the regional police chief and the defense ministry to sack an Iraqi army general. Al-Waeli, a member of the dominant Shiite coalition, demanded the dismissal of...