The ultimate net monitoring tool
The equipment that former AT&T technician Ed Klein learned was installed in the NSA "secret room" in AT&T's San Francisco switching office isn't some sinister Big Brother box designed solely to help governments eavesdrop on citizens' internet communications.
Rather, it's a powerful commercial network-analysis product with all sorts of valuable uses for network operators. It just happens to be capable of doing things that make it one of the best internet spying tools around.
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