This is creepy technology at its best – new traffic cameras are being launched that can sense the amount of blood in a car. From this they deduce the number of people travelling in it, and can be used to enforce car-sharing lanes on motorways and in cities.

The new vampire cameras (as they are DEFINITELY going to be called) are about to be put into action to reduce clotting – sorry, congestion – in Leeds, but other councils have also expressed an insatiable thirst for the information they provide.

Former Home Secretary and man “with the look of the night about him”, Michael Howard, will surely order one for himself… No?

Just don’t drive after dark….

(Image: from David Light Orchard’s flickr stream)