April 25, 2012 7:38 am Possible Carbon Monoxide Poisoning in Oxon Hill Firefighters and paramedics in Prince George’s County will canvass their communities to test carbon monoxide detectors Wednesday. NBC4’s Melissa Mollet reports. Local 3:04 Students protest at GW despite suspension warning 2:27 Curfew for teens at National Harbor is in effect 30:04 Pro-Palestinian protests continue on college campuses: The News4 Rundown 2:30 Jury recommends 4 years for driver in deadly crash 2:48 DC Irish pub The Dubliner celebrates 50th anniversary