scene. outside the gate 45 minutes before the blast. and then just before the device detonated, it's packed and the marines are bunched up. u.s. military said the device was sophisticated and could be reasonably expected to have killed all the people. the u.s. military told cnn doctors might have mistaken wounds made by these bullet bearings for bullet wound, adding, they were-to-too similar to tell apart without study of the wound and the finding of the project president is ile which caused it, which the afghan hospitals could not do in a mass casualty event. with a doctor who said he pulled bullets out of four patients disagreed. >> according to my 15 years of surgery in afghanistan, bullet injuries are very different. when a ball bearing enters the body, it makes a big hole. different from a chard bullet. when a bullet enters, it makes a