I have learned that, if you have children, you should
#5-We should send major $$ to the people responsible for microchipping dogs, in the hopes they can come up with a microchip that has GPS locator included-then chip the kids
As you can see by my avator, I have a dog and I know that there is a GPS locator for dogs on the market that allows you to track your dog to within 500ft. - it's not a microchip -you put it on the dog's collar. My dog has gotten out of my fence a couple of times and I have considered buying it, but the price is a little high for me to afford - about $300-400 I think, but coming down in price.
I am pretty sure that they make a GPS locator for kids that you put on them like a watch, but I'm not sure of the cost. An episode of "Without a Trace" featured a child that was prone to getting lost whose parents had one for him. I think a GPS locator for kids is a good idea, but it would have to be a reasonable size to not be obviously detectable as a GPS device. For example, if it looked like a regular bracelet or necklace or watch, it may not be so obvious that is what it is (and therefore, not as obvious to an abductor).