Well, it's a dangerous world for everybody, really... but Ron Shank has been doing a series on a Dateline story about sexual predators who use the internet to find victims. They "busted" (on television) a whole big bunch of would-be predators by posing as teens in a chatroom and waiting on the jerks to show up at the door, to meet them with cameras.
first post

follow-up, with some common sense tips that on-line families should be seriously thinking about.

Uh-oh... the boys in blue not going to follow up?

A non-Dateline arrest.

Again, why no charges?...

During “Dateline NBC’s” recent hidden camera investigation, 19 were caught going to a suburban home where they thought they’d be meeting with sexually available teens. Some made a run for it when they went into the kitchen and saw NBC’s Chris Hansen waiting.

One came into the house completely naked and sat down in the kitchen, where Hansen met him and kindly handed him a towel to cover himself up.

If you have kids and computers... be keep this in mind and be very careful.