Is waterboarding torture? Fr. Harrison seems to think that this is debatable. Is there a valid distinction between causing physical pain and mental pain/anguish? What of the actual procedure, in which someone is prevented from breathing normally? Even if it does not cause any permanent harm to the body or actual bodily pain, it does seem to be some sort of injury (i.e. an unjust act), an attack on the normal functioning of the body.

David Oderberg, “’Whatever is Changing is Being Changed by Something Else’: A Reappraisal of Premise One of the First Way” (via Edward Feser)