Instagram Account Exposes Criminal Witnesses

"Philadelphia police and prosecutors are investigating an anonymous Instagram account with thousands of followers that for months has been identifying witnesses in violent crimes across the city - aiming, in its creator's words, to 'expose rats.'

The account, called rats215, has outed more than 30 witnesses since February, posting photos, police statements, and testimony on the photo-sharing website. (November 09, 2013)"

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