Watching and Smelling

(Fox News) - Officials in London have been testing a special kind of surveillance camera that can analyze exhaust fumes and record license plate numbers — opening up the door to fine owners of vehicles that do not meet emission standards.

The Daily Telegraph reports the cameras can scan 3,000 vehicles per hour — and could be used to enforce new pollution restrictions that go into effect next February — with fines of around $400/day for violators.