Watching the Watchers

I read with interest this morning the following:

“Snitchtown” is an essay by Cory Doctorow that first appeared in Forbes.com in June 2007. This SoFoBoMo project is an attempt to illustrate that essay with photographs of some of the 4.2 million CCTV cameras currently estimated to be active in Britain.

It got me thinking: how about setting up a database - a surveillance of surveillance database - that has pictures and locations of CCTVs in the UK? It could be crowd sourced, and anonymous, solving problems of scaling and legal issues. If nothing else, it would put the watchers on notice that they are being watched....