If that's the case, why aren't we REALLY torturing terrorists?

If waterboarding is as bad as hooking up a car battery to a prisoners testicles [as gay as that sounds], pulling out their fingernails with pliers, beating the crap out of them with baseball bats, drilling their teeth, throwing them off roofs while blindfolded, raping them [as gay as that sounds], hanging them from their arms which are bound behind them, chopping off their hands, stabbing them in the eyes, etc.......why don't we just do all of those things?