Analysis and Comment

When does hungry become hangry?

Missing a meal can certainly push you toward a bad mood. But new research identifies in what kind of situations hunger is most likely to tip toward hanger.

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Facebook and privacy

Social media companies combine many pieces of information into a complex digital profile. Tetiana Yurchenko/

To serve a free society, social media must evolve beyond data mining

For years, watchdogs have warned of the potential problems of sharing data with online companies. The Facebook data crisis has made these concerns much more real. What should be done now?


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