Paul Wallich rigged a drone with a camera and then stashed the GPS unit in his son’s backpack. Using navigation software, he made sure the copter would stay a certain distance behind the child as it followed the kid to the bus stop.
In concept, it’s a brilliant stroke of hi-tech parenting that allows Wallich to keep an eye on his son remotely. But as a real-world safety measure, it’s questionable. It’s one thing to make sure dangerous strangers don’t approach the boy, but it’s another when the surveillance/tracking copter makes him a target for bullies. More here.