We didn't attack ourselves on 9/11, and the "truther moonbats" are just wrong about that. Afganistan didn't attack us, and neither did Iraq. We were attacked by Al Qaeda, which was an enemy of Iraq as well as other ME countries. Most of the attackers were from our "friend and ally" Saudi Arabia, whom we would never dare attack as it would create an economic depression in the entire western world, and we know it.
But, that is an hypothetical question. We didn't just waterboard one bad guy, or three bad guys who gave us information we needed to save LA, as the pro torture people would have us believe. That is just as much a moonbat idea as arguing that our own government was behind the attack on the twin towers.
A lot of bad things happen in wartime. One of those things is the mistreatment of prisoners. Excusing, ignoring, or denying such mistreatment, denying or excusing any of the horrible things that happen during war, is disingenuous to the extreme, and only encourages further wars.
John Kennedy said it best: