Your call and text records are far more revealing than you think

""The study has important implications for surveillance law and policy," says Arvind Narayanan, a computer scientist and data privacy expert at Princeton University. "Our intuition for terms such as 'two hops,’ [and how it limits the number of people connected to you], proves wildly inaccurate when applied to modern telephone networks." And he notes that NSA has vastly more data and resources than academic researchers. "With access to millions of records and sophisticated machine learning techniques, it is likely that one can obtain a far more complete picture of individuals' sensitive personal details, behavior, and more.""