It is only a matter of time before many people will be wearing always-on streaming video cameras when they are out on the street. They may do this for a variety of reasons, including self-quantification, but an immediate application will be personal security: it would be riskier to mug or assault someone if you may be filmed, live, while doing so.
Because such devices would be an effective deterrent to crime only if obvious, people may advertise that they are wearing them with a highly visible badge or light.
This could create a secondary effect. Some anticrime technologies, such as LoJack for cars, reduce crime by making it easier to catch criminals. But others merely divert it elsewhere; this is said to be case with anti-burglary systems. When criminals see the “protected by” signs in the yard, they are likely to simply move on to a house that is not protected. Muggers might make a similar decision, avoiding the video-protected.
In areas where crime worries people, this could drive rapid adoption of what might otherwise be a niche technology.
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