CIA not so I?

In recent news, the CIA has been on the hot-seat. The Central Intelligence Agency might not be so intelligent after news of their torture skills have gotten out. Their brutal interrogation techniques don't reflect any sort of "intelligence" to me. Their techniques include but are not limited to: waterboarding, sexual assault, round-the-clock EIT, stuffing people in a coffin-like box, rectal infusion of "pureed" humus, nuts, pasta, and raisins (what a lovely tactic);  intimidation with a power drill, etc. Intelligence is part of the CIA's name! What they're doing doesn't show much intellectual abilities there. These people are dealing with some of the most dangerous terrorists and are trying to get as much information from them as possible. I understand that torturing these people until they're basically dead is just an oh so fabulous way of going about it, but why can't they use their minds to trick them into revealing things. The brain is powerful thing; so why not psychologically confuse and trick them? I would think that would be more suitable for this intelligence unit.