Social media site went down for about an hour on Thursday morning
                                
                                
                                    (Newser) -
                                    Update: Relax, people—Twitter is back. The social media platform went down for about an hour Thursday morning, but it seemed to have returned for most people by about 9am ET, reports  CNBC . The outage affected the entire US, especially in larger cities like New York and Los Angeles, as...