The D.C. Metro rail system has had safety problems in the past, including an incident on Jan. 12, 2015, when a car filled with smoke, leaving one person dead. Manuel Balce Ceneta/AP hide caption

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When passengers board his train on the Washington, D.C., subway system, they hear Lamour Rogers' pleasing baritone over the public address system. Christina Cala/NPR hide caption

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Metro Driver's Booming Voice Connects Washington, D.C., Commuters

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Visitors check out the Soviet-era metro cars exhibited at the Partizanskaya subway station in Moscow, as part of festivities marking the subway system's 80th anniversary. Pavel Golovkin/AP hide caption

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Glory Of Moscow's 80-Year-Old Subway Tainted By Stalin Connections

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