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Facebook experiment raises privacy concerns

Tech Yeah! FB faces backlash after news feed experiment

Facebook published a research paper this month revealing that it manipulated its users' emotions by controlling the number of positive and negative posts shown on news feeds, a move that has caused a backlash among social networkers and brought to light the lack of safeguards to protect users.

"It is simply a terrible thing to do to intentionally evoke a negative emotional response from someone without their knowledge or consent," said Jeremy Rosenberg, senior vice president and head of digital operations at Allison+Partners, a communications consulting firm.

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