Traffic on Las Vegas Boulevard North is diverted away from the Lloyd D. George Federal Courthouse in downtown Las Vegas, Nevada after a fatal shooting January 4, 2010. One security officer was killed and a deputy U.S. marshal was wounded when a man pulled out a shotgun and opened fire, officials said. The gunman, whose name has not been released, died across the street shortly after marshals returned fire, officials said. [Xinhua/Reuters photo]