CNN Erin Burnett OutFront October 6, 2015 23:02:00
Our operational authorities in rules of engagement. >> reporter: that order and acknowledgement that something went wrong. and the secretary of defense minced no words saying in a statement, when we make mistakes, we own up to them. that's exactly what we are doing now rules of engagement spell out when and how the u.s. military can conduct air strikes like the ac-130 gun ship that hit the hospital. doctors without borders says the u.s. knew it was a hospital. they were under attack for 30 minutes. he could not have been a mistake. >> until we are told otherwise and see an independent investig...