Six Troops Killed As "Insider" Attacks Grow In Afghanistan
Description:Four U.S. troops fighting with the NATO-led alliance were killed in another suspected "insider" attack in southern Afghanistan on Sunday, bringing the total number of deaths this weekend caused by Afghans turning on their allies to six.
Four troops were found dead and two wounded when a response team arrived at the scene from a nearby checkpoint, a spokesman for the coalition said. APentagon spokesman confirmed that the four dead were Americans.(1:33)