I have to agree with Socke on this.
If it is really so easy to track down someone, I'm wondering why so many criminals are still not caught, including them pedophiles. Your face and your kid's are being photographed and filmed more often than you care to believe, by government and by private people.
Yes, child molestation and murder by pedophiles does occur. Here in Holland we've had a few very high profile cases in the past couple of years. But why didn't we read about the 50-55 children each year that get raped, abused and (ending the suffering for them) die because of molestation by parents, siblings or other close relatives? Because no-one wants to hear it.
If you or your wife are really worried about your child's safety you better keep a damn close eye on your relatives. Your child sooner falls vicitm to one of them than to a stranger.