One other thing about waterboarding. There seems to be a growing fad among pundits and journalists — especially those who wish to defend the Bush administration — to announce they've had themselves "waterboarded" and it's no big deal.
I'm no expert on this but it seems to me the premise of waterboarding in the real world is to make the prisoner think he's about to die; that this could be the time they go too far with it. Being waterboarded by someone who cares about your welfare — who probably would go to prison if you actually did die — is not the same thing. To simulate the experience of an enemy prisoner being waterboarded, you have to be waterboarded by someone who wouldn't be all that upset if you drowned…and might even get some jollies from it.