the sunni insurgent groups, really terrorist groups. we have a lot of sunni insurgents but there are a couple of defined core terrorist groups as we remember al qaeda in general to be. that's what these elements are. senator mccain is dead on the money. they have been waiting for the u.s. to withdraw. they have been waiting for opportunity to get out and strike. we might remember the u.s. was responsible for much of the intelligence that helped pinpoint these radical groups. that helped suppress them and kill or capture members of them with the iraqi forces. once the u.s. intelligence apparatus pulled out they have a more free hand to do what they want to do. these bombings are an example. >> claim of responsibility, it made no mention, of my understanding of the u.s. with drawl. instead it focus the its rage on the country's shiite-dominated leadership. where do you see this going from here? >> it is important to remember to frame the picture. 20% of iraq is sunni. saddam hassoun any.