August 16, 2013 7:40 am Panda Pregnancy Watch The Smithsonian’s National Zoo is back on a 24-hour panda pregnancy watch, as zookeepers try to determine if Mei Xiang is expecting or experiencing a false pregnancy. Local 0:40 Man stabbed to death near Audi Field in DC 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 0:43 American University locked down before man arrested on campus 3:08 Family holds memorial for brothers, 3 and 6, who died after Clifton house fire 2:05 ‘People immediately hit the ground': 6 hurt in shooting outside DC nightclub