Attackers ambushed and killed two American contractors working for Blackwater Security Consulting south of the Iraqi capital, the U.S. Embassy and security officials said Sunday. Embassy spokesman Bob Callahan said the attack occurred Saturday on the main road to Hillah, south of Baghdad. He did not say exactly where. "I can confirm that two American employees of Blackwater Security were killed early yesterday (Saturday) afternoon on the road to Hillah when an IED exploded next to their vehicle," Callahan said. An IED is a military acronym for an improvised explosive devise, or homemade bomb used frequently by insurgents to attack U.S. troops, their allies and Iraqi forces. Another American Blackwater employee "was injured and is being treated at the military hospital in the Green Zone. His injuries are not life threatening," Callahan said.
