12/17/2012

Coverage of Friday's school shooting in Newtown, Conn., saw many news organizations misidentify the killer's brother as the perpetrator, based in part on information from his Facebook profile. And a number of social media users created false accounts pretending to be the shooter, prompting investigators to warn that impersonators risked prosecution. "The very thing that makes social media alive and vibrant, an arena where anyone can play, is also its greatest weakness, enabling people to be vicious and dishonest," Lauren Ashburn writes.

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