http://www.usatoday.com/news/washing...t_N.htm?csp=15
WASHINGTON (AP) — FBI scientists were unable to match bullets from a deadly 2007 shooting in Iraq to guns carried by guards for U.S. government contractor Blackwater Worldwide, according to laboratory reports that leave open the possibility that insurgents also fired in the crowded intersection.
Five guards with Blackwater, a private security company hired by the United States mostly to protect diplomats, face manslaughter and weapons charges for their role in the Baghdad shooting. The shooting left 17 Iraqis dead and inflamed anti-U.S. sentiment abroad.
Prosecutors say the contractors launched an unprovoked attack on civilians using machine guns and grenade launchers. The guards maintain their convoy was ambushed by insurgents