Someone tried out waterboarding.
I'll put it this way. If I had the choice of being waterboarded by a third party or having my fingers smashed one at a time by a sledgehammer, I'd take the fingers, no question.
It's horrible, terrible, inhuman torture. I can hardly imagine worse. I'd prefer permanent damage and disability to experiencing it again. I'd give up anything, say anything, do anything.
The Spanish Inquisition knew this. It was one of their favorite methods.
It's torture. No question. Terrible terrible torture. To experience it and understand it and then do it to another human being is to leave the realm of sanity and humanity forever. No question in my mind.