This is the definition of: BUSTED
 

Dateline NBC has been running "To catch a predator" recently.
They set up hidden cameras in rented homes and lure men to the homes from chatrooms on the internet.

Every one of these guys that show up thinks they are meeting an underage (13 to 15 years old typically) girl.

http://www.msnbc.msn.com/id/10912603/

It's like putting a barrell of raw meat into a pen full of tigers. I'm sure they could sit there and do this for years. Jails would be over-run with these guys.
It gives you the feeling that this is an epidemic.

Shocking as well are the kinds of men that show up. Teachers, ministers, professionals, etc.. Nobody seems to be exempt from taking these huge risks.

i love watching these shows, but from the example of the 1 page in the story, the guy was arrested for sending obscene stuff to a minor. my question is, how can they do that when its really an adult pretending to be a minor?

They're soliciting sex to people they know to be minors over the internet.

The best is when the guy gets naked and gets out his six pack.