With the death in Anbar today of a member of the Sunni leadership who was among the key figures in the recent rapprochement with U.S. troops there, it bears returning to the issue of what constitutes the Sunni insurgency. Gen. Petraeus downplayed the non-al-Qaeda Sunni insurgency in his testimony this week, but al Qaeda in Iraq is a tiny proportion of the overall Sunni insurgency.