Twitter, American Express let users buy with hashtag http://usat.ly/14Q51fS via @USATODAY #ByAmExGiftCard25 #Interesting
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@USATODAY not sure, it would depend on the security/safety of personal information.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@USATODAY somehow it just doesn't seem very secure. -
@DrWhoWhereRU That's a valid concern. We'll see how things develop. Thanks for joining us. -
@USATODAY no problem :)
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