Wi-fi is God. Soon it will be everywhere and, thanks to it, the ‘big brother’ will keep his eye on us all.A goog example are Scottsdale(Arizona) school students: in no time their school buses will be equipped with CCTV cameras connected via wi-fi; they will make thesurveillance inside the buses possible. Originally, the wireless devices will only be installed on the outside of the vehicles, and therefore the broadcasting of the videos will be recorded. But in case of an emergency, the cameras can also be connected from any point via mobile phones; however, this service is not due to be used.