July 29, 2015 6:40 pm Metro To Test Air Quality on Trains After Asbestos Is Found Metro will test the air quality on some of the 1000-series rail cars that were found to be carrying asbestos. News4 transportation Reporter Adam Tuss reports. Local 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 2:20 Driver accused of deadly hit and run of skateboarder held without bail