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Big data could uncover clue on marathon: Column

Americans object to invasions of their privacy. But in this case, video could help.

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Big data could uncover clue on marathon: Column

Scott Sigmund Gartner Published 9:03 a.m. ET April 16, 2013 | Updated 11:18 a.m. ET April 16, 2013

Americans object to invasions of their privacy. But in this case, video could help.

Boston police officers stand at barriers closing off Boylston Street today in the aftermath of two explosions that struck near the finish line of the Boston Marathon.

(Photo: Stan Honda,AFP/Getty Images)

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