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> Correct me if I'm wrong, but to theoretically record every single phone conversation in America would require unbelievable amounts of data storage, would it not?

GSM voice codec is 9600bps = 1200 Bytes/s

x60 sec, x20 min per day, x365 days per year = about 500MB per person per year.

times however many people there are in the US, that's not a whole lot of storage and definitely a mere fraction of the NSA's data-centres.




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