The criminal trial on which I was a juror was interesting on many levels, but one thing that really caught my attention was how much surveillance occurs as we go about our daily business. The prosecution introduced several video clips acquired from cameras in apartment buildings, stores, and on the street. Cell phone records were also introduced and cross-referenced with the video footage. It’s one thing to understand at an abstract level that technology has greatly diminished our anonymity, but an actual demonstration of the fact is both impressive and a little unnerving. Of course, we are all complicit in this trend. We’re more than willing to post our whereabouts on Twitter and Foursquare for everyone to see, so complaining about cameras watching us seems beside the point. Whether all this surveillance measurably increases our safety is another matter, though, and one on which I still need a good deal of persuasion.

