How The NSA Scours 75% Of The Nation’s Internet Traffic

The NSA – which possesses only limited legal authority to spy on U.S. citizens – has, according to the Wall Street Journal, built a surveillance network that covers more Americans’ Internet communications than officials have publicly disclosed, current and former officials say. The system has the capacity to reach roughly 75% of all U.S. Internet traffic. The NSA’s filtering, carried out with telecom companies, is designed to look for communications that either originate or end abroad, or are entirely foreign but happen to be passing through the U.S. But the WSJ reports that officials say the system’s broad reach makes it more likely that purely domestic communications will be incidentally intercepted and collected in the hunt for foreign ones. Details of these surveillance programs were gathered from interviews with current and former intelligence and government officials and people from companies that help build or operate the systems, or provide data. Most have direct knowledge of the work. Here is how the system operates…

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