From monitoring traffic to preventing crime, closed-circuit television (CCTV) cameras have a range of purposes. But with increasingly-high resolutions, more remote access to live video streams, and the utilization of technologies like facial recognition and Ring doorbell cameras – just how much is too much when it comes to police surveillance? This resource collected data about some of the most surveilled cities in the United States, correlations between increased surveillance cameras and reduction in crime, and further areas of concern.

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