In other words, Mark you don't know for certain, but are willing to opine
Let's see Mark: some of our fellow citizens are dying in Iraq, and some are being seriously wounded, and many Iraqis' lives being ruined or ended, and you don't know for certain how this came about?
Well, don't feel so bad. I don't know exactly how it came about either. No one does. And Pelosi has promised that no hearings will be held to find out exactly os it happened. Something to do with the Gorilla in the Room, as I understand it.
