Employees of the CIA-connected private security corporation Blackwater diverted hundreds of weapons, including more than 500 AK-47 assault rifles, from a U.S. weapons bunker in Afghanistan intended to equip Afghan policemen, according to an investigation by the Senate Armed Services Committee. On at least one occasion, an individual claiming to work for the company evidently signed for a weapons shipment using the name of a “South Park” cartoon character. And Blackwater has yet to return hundreds of the guns to the military. A Blackwater subsidiary known as Paravant that until recently operated in Afghanistan acquired the weapons for its employees’...