A subway train arrives Jan. 13, 2015, at the L'Enfant Metro Station in Washington, D.C., which is part of the region's public mass transit network. (Associated Press) ** FILE **
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A subway train arrives Jan. 13, 2015, at the L'Enfant Metro Station in Washington, D.C., which is part of the region's public mass transit network. (Associated Press) ** FILE **
