There's an article in one of today's newspaper about tracking-devices for schoolkids. The device is done by a company in Graz and is similar to a mobile phone. It recognizes all mobile phone poles on the child's way to and from school, and when the child is too far off the way (like Little Red Riding Hood) automatically calls the parents. In the future it should be possible to precisely track the child's position.
That made me think. It's common to chip one's cats. So when will we start chipping our children?