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A comment on How Facebook's Safety Check Works.

Re:How Facebook's Safety Check Works by bekimdisha on Tuesday November 17, 2015 @02:01PM (#10583211)
WhatsApp now uses Facebook Messenger's protocol ... FYI
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Re:How Facebook's Safety Check Works by tyggy on Thursday November 19, 2015 @03:41PM (#10597478)
how do you know?
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