May 23, 2017 6:15 pm DC-Area Officials Maintaining High Security in Wake of Manchester Attack Police say there are no known threats to D.C. or to the Metro system. News4’s Meagan Fitzgerald talked with officials in the District and in Rockville, Maryland. Local 3:28 Social media and teens' mental health: A psychiatrist weighs in 1:41 DC-area police ramp up traffic enforcement in pedestrian safety campaign 3:05 ‘We need real liberation': George Washington University pro-Palestinian protest enters fifth day 2:17 GW asks to students to move pro-Palestinian demonstration 3:01 “It's 100% different”: Community reflects on emergency curfew at National Harbor