With thanks to SpyBlog, and Samizdata I learn that CCTV has been nominated as an icon of Britain via the (expensive) bit of propaganda that is the icons of Britain website (Hint: the Routemaster Bus is really more an icon of London rather than Britain!) From the site:
Smile â€” you're on camera! Britain is officially the most watched country in the world. We're now monitored by some four million CCTV (Closed Circuit Television) cameras, one for every 14 citizens. If you live in London, the chances are you are caught on CCTV about 300 times a day.
You can vote here