Couric: Senator McCain, Sen. Obama says, while the increased number of U.S. troops contributed to increased security in Iraq, he also credits the Sunni awakening and the Shiite government going after militias. And says that there might have been improved security even without the surge. What's your response to that? McCain: I don't know how you respond to something that is such a false depiction of what actually happened. Colonel McFarlane (phonetic) was contacted by one of the major Sunni sheiks. Because of the surge we were able to go out and protect that sheik and others. And it began the Anbar awakening. I mean, that's just a matter of history.