Maryland September 12, 2024 10:19 am Some DC-area schools on alert after social media threats None of the threats have been deemed credible. News4’s Joseph Olmo reports. Local 2:27 GW doctor helps spread information about cancer through radio show 6:43 Following DC's new giant pandas from Dulles to the National Zoo 0:32 ‘They have arrived': Cheers erupt as pandas arrive at National Zoo 3:51 ‘Blessed to have them': Giant pandas' arrival sparks excitement in DC 7:36 ‘We have a crate!': Pandas arrive at Dulles International Airport