"An Iraqi taxi driver was shot and killed on Saturday by a guard with DynCorp International, a private security company hired to protect American diplomats here, when a DynCorp convoy rolled past a knot of traffic on an exit ramp in Baghdad, the Iraqi Interior Ministry said Sunday. Three witnesses said the taxi had posed no threat to the convoy, and one of them, an Iraqi Army sergeant who inspected the car afterward, said it contained no weapons or explosive devices. “They just killed a man and drove away,” Maj. Gen. Abdul-Karim Khalaf, an Interior Ministry spokesman, said in his office on Sunday afternoon. He added later, “We have opened an investigation, and we have contacted the company and told them about our accusations, and we are still waiting for their response.”"