I've tried wading into some of the discussion about Torture, primarily in Catholic Blogs where the argument has raged. There are questions to be answered: Does the Church teach that torture is intrinsically evil? Seemingly yes, from Veritatis Splendor, which, in turn, cites Gaudiam et Spes.
What does the Church mean by torture (or torments)? Is there a reasonably clear line that helps us decide what treatments to condemn and which to tolerate? The answer seems to be no.
My intuition remains that water-boarding is a form of torture and therefore to be rejected. But how the relatively recent movement of the Magisterium to reject torture helps in specific cases isn't at all clear to me. So in the process of trying to digest the various arguments here is another take on the problem:
Disproportionate infliction of pain:
In a discussion on a Catholic and Enjoying It! post on the ongoing defense of the Bush Administration's policy of torturing prisoners, I was invited to address the position staked out by Jimmy Akin in a series of posts back in 2006.
Read the whole thing.(Via Disputations.)