The Washington Post has a good article on this whole issue in today's paper that includes the following quote, highlighting the absurdity of the whole situation:
Intelligence analysts computing aggregate levels of violence against civilians for the NIE puzzled over how the military designated attacks as combat, sectarian or criminal, according to one senior intelligence official in Washington. "If a bullet went through the back of the head, it's sectarian," the official said. "If it went through the front, it's criminal."
Read the rest here.