At a House Homeland Security committee hearing that stretched over three hours lawmakers and Transportation Security Administration officials stressed the urgency of the ongoing government shutdown as TSA workers scrape by without pay and long security lines wind through some airports. The shutdown may force TSA to consider closing some airports until funding resumes, said Ha Nguyen McNeill, the agency’s acting administrator. Senators are chasing a deal that would fund much of DHS, including TSA workers who are going without pay, but exclude immigration operations that have been core to the dispute.