I'm sure this is obvious, but this video on how To Catch a Predator (perverted justice) doesn't work.
Shockingly enough, the motives of Reality TV / Entertainment news / the utter shit that passes for "news" don't mix with actual law, law enforcement, or people actually interested in catching predators not for "good entertainment". Worth a watch for sure, even more so if you're a fan of this tv program (for real or for laughing at).