To create, trap and catch a predator...

This week, MSNBC.com is outlining Dateline's upcoming coverage of it's hit show, To Catch a Predator. The series works by creating an elaborate scenario in which a child predator is lured to a specified location (set up by the Dateline crew) by communicating with a "minor" via the Internet. The show also uses an 18-year-old actress to set the scene:

The girl is an 18-year-old actress hired by Dateline. She’s inviting suspected sex predators to sit at a bar in a backyard that is wired with hidden cameras.

The show has been sucessful in capturing a number of these supposed pedophiles. But the real question lies in the legality, and if not the legality, the ethics of the show's tactics. Is this really right? CBS doesn't think so, and posted a blog on their disagreement with the show's tactics, and addresses whether or not Dateline is using entrapment during the process of filming.
In no way do I sympathize with pedophiles, but if it is ethical to use such intricate tactics to lure men into situation that will forever ruin their reputations, what other situations will the show be able to create in the future. Also, is this show catching predators or creating them?
I don't agree with this show. While I realize that pedophiles are a real threat to our nation's children, I don't agree that television shows should be allowed to air to the nation sting operations that are quite possibly more for ratings than for actual concern for the protection of children.