U.S. Transportation Secretary Anthony Foxx said last week he had seriously considered ordering a shutdown of Washington's troubled subway and warned the subway agency he would not hesitate to use that authority if necessary.
"We're not afraid to use the authority we have," Foxx told reporters in a briefing at the Transportation Department's Washington headquarters. "The culture of safety is not where we want to see it ... I have great concerns."
In March, Metro launched an unprecedented day-long shutdown for emergency safety checks of 600 underground cables that could pose a fire risk.
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