With Facebook search, users may lose their sense of obscurity

"A lot of this stuff that was previously unlikely to be seen outside of a small group of people will now easily be found through search on Facebook," said Woodrow Hartzog, assistant law professor at Samford University in Birmingham, Ala.

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University of Washington law professor Ryan Calo told me in December that "preserving obscurity is the best way to protect privacy. This is an example of a company taking obscurity away. "It feels almost as though Facebook is trying to acclimate users -- even recalcitrant ones -- to a world of personal transparency."