challenge to persuade saudi officials and says donors constitute some of the most significant sources of funding for sunni groups and until we deal with that we're dealing with this problem. >> well i'm not sure to be honest if i agree with the premise of your question only because it's not -- the saudis contribute to what's happening but they weren't the cause, the root cause. the situation in syria is clearly what is driving -- driven the creation of isil and the continuation of it. and unfortunately, our policy is murky. the u.s. policy is murky and so we have to take a look at that and then we have to take a look as you pointed out the funding mechanisms. they're almost become self sustaining with the cities and oil refineries captured and the social -- >> but they may not have gotten to this level at all, this level