"REP. IKE SKELTON: As we all know, of course, American troops are still paying a deadly price. I hate to turn the radio on in the morning and listen to those reports. So may I ask: what is our current estimate of the size of the insurgent force, and how much uncertainty is connected with that estimate? DONALD RUMSFELD: The intelligence community looks at that -- CIA does, DIA does, others do-- and they have differing assessments over -- at different times. And as you know, they're made up of former regime elements, Baathists, and they're made up of Zarqawi-type Jihadists and terrorists. And they also include a varying number of criminals who are paid to do these things. And it's that aggregation that constitutes the insurgents. I am not going to give you a number for it because it's not my business to do intelligent work.