Glyn Moody writes:
One of the reasons that the total surveillance programs of the NSA and GCHQ are possible is that computers continue to become more powerful and cheaper, allowing ever-more complex analyses to be conducted, including those that were simply not feasible before. Here’s another example of the kind of large-scale monitoring that is now possible, as reported by Nikkei Asian Review:
NEC announced that it has developed the world’s first crowd behavior analysis technology. Based on the simulated behavioral patterns exhibited by people in emergencies, the system is designed to detect any abnormalities in the behavior of congested public places.
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