NSA, Metadata, and You

“One of the problems here is that metadata is kind of a relative term,” says Julian Sanchez, a research fellow at the Cato Institute in Washington, D.C. “There’s information that is metadata to Facebook and Google that might be data to the ISP.”(source infra)

Mobile Call Logs Can Reveal a Lot to the NSA | MIT Technology Review: "Of all the recent revelations about the National Security Agency’s sweeping surveillance activities, the collection of metadata from Verizon’s U.S. call records may be the most concerning (see “NSA Surveillance Reflects a Broader Interpretation of the Patriot Act”). Despite reassurances that the information collected is limited in its scope, academics who study such data say it could still reveal a great deal about the people being monitored. . . ."

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