Over in the U.K., closed-circuit television (CCTV) cameras are a ubiquitous sight: the country—led by London—has more of the tiny public surveillance cameras than any other country in Europe. They're now a part of pop culture and are referenced in songs, used as album artwork, and in the case of one intrepid band, used to make a music video. The latest zinger in the debate over the effectiveness of CCTV is that, well, they’re......