In this March 2015, photo, passengers wait on the platform before boarding a train at the U Street Metro Station in Washington, part of the public mass transit network for Washington. The panel overseeing Metro safety said on Nov. 5, 2021, that it has accepted Metro’s plan to test its 7000-series railcars, a step required to get the cars — which make up about 60% of the fleet — back on the tracks after last month’s derailment. (AP Photo/Pablo Martinez Monsivais) **FILE**
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