Yesterday, we learned that the NSA received all calling records from Verizon customers for a three-month period starting in April. That's everything except the voice content: who called who, where they were, how long the call lasted -- for millions of people, both Americans and foreigners.
This "metadata" allows the government to track the movements of everyone during that period, and a build a detailed picture of who talks to whom. It's exactly the same data the Justice Department collected about AP journalists.

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