British foreign secretary gets social with Twitter followers

Washington (CNN) -- A North Carolina man was arrested Wednesday and accused of threatening to kill President Barack Obama in a series of Twitter messages, including one saying, "The Secret Service is gonna be defenseless once I aim the Assault RifleToday's highly-anticipated event in Charlotte was the single biggest day of both conventions. President Barack Obama's (@BarackObama) acceptance speech at #DNC2012 set a new record for political moments on Twitter, with 52,756According to a tweet from the well-connected MG Siegler, Twitter is discontinuing development of Twitter for

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