I recently saw the "To Catch a Predator" shows on NBC's website (blame it on my inner-voyeur, OK?). I got the sense that a large proportion of the men they snagged were harmless and would unlikely be able to seduce a real 13-year old. Only a few of the "predators" seemed really dangerous.
I also thought it was a shame that Chris Hansen would waste his talents confronting & interrogating these pathetic men instead of going after the powerful.