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U.K. Spy Agency Secretly Taps Over 200 Fiber-Optic Cables, Shares Data With the NSA

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Wired; By Kim Zetter
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The British spy agency GCHQ has secretly tapped more than 200 fiber-optic cables carrying phone and internet traffic and has been sharing data with the U.S. National Security Agency, according to a news report. One part of the operation, codenamed Tempora, has been operating for about 18 months and allows the agency to tap large volumes of data siphoned from the cables and store it for up to 30 days for sifting and analyzing. Each of the cables carries about 10 gigabits of data per second, which the paper likened to sending all of the information in all the books in the British Library through the cables 192 times every 24 hours.

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