Morally Deviant Behavior: Justified/Not? Respect maintained in "justice" served?

Tonight we talked about pedophiles. We also watched a few videos on them. The first was talking about a park right across the boarder into CA from Mexico. Apparently lots of young Mexican boys were being talked into sex for money by older guys. The boys needed the money to survive since they just came across the boarder and were so young. The older guys, well they were just sick if you ask me. It doesn't seem the police are too concerned, some think because of who is involved, sad.

Also, we watched a headline on abc. They were having a girl pose as a 13 yr old girl or boy and get on chat rooms and wait to pick up pedophiles. This person would wait till the other person initiated the idea of getting together and ...well..you know. Then they sent them all to the same address, where there were video cameras hid. When the guys came into the kitchen she'd say she had to brush her teeth. As the men (they were all men) were waiting the host of the show would come out and talk to them, with copies of their chat conversations. Some guys ran, most tried to deny (until he read word for word what that guy said). When they ran, in the driveway there were cops waiting to arrest them. So either way they were caught. So... a few questions arise. Is it ok to set people up like that? Apparently lots of states would say it is. However, what I am not sure I agree with was the very public (national) presentation of what happened. They didn't even blur out their faces or anything, and said their names and stuff (because at first the guys didn't know they were being taped). To me that is just a little too far. These people should be caught, but in the end they are still people. To me their shame does not need to be public knowledge. I don't know, there are also reasons people would want to know thats what they were living around, but I would think there were other ways.. Kind of surprising though, one of the guys said he'd seen abc's other "predator" shows where they set people up, and yet he still fell for this.