Okay, let me unpack that a little.
As a torture survivor (and if you don't think child abuse is a form of torture, come here. I'd like to show you a few things.) I am here to tell you that torture works just fine--if what you are after is to get the person you are torturing to tell you whatever the hell they think you want to hear to make the hurting stop.
If you actually want to know something useful, not so much.
Also, it's an evil act.
Remember evil? We used to have evil.
We were against it.