A ground stop has been issued at several airports in the Washington, D.C., region, Transportation Secretary Sean Duffy announced Friday evening.The Federal Aviation Administration (FAA) is investigating a strong odor at Potomac Terminal Radar Approach Control (TRACON), which manages air traffic in the area, according to Duffy.The ground stop affects Ronald Reagan Washington National Airport (DCA), Washington Dulles International Airport (IAD), Baltimore-Washington International Airport (BWI) and Richmond International Airport (RIC), according to Duffy.FUEL CRISIS FORCES AIRLINES TO ANNOUNCE MA...

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