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February 9, 2016

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In this April 1, 2014, file photo, General Motors CEO Mary Barra testifies before the House Energy and Commerce subcommittee on Oversight and Investigation on Capitol Hill in Washington.

Evan Vucci / AP

In this April 1, 2014, file photo, General Motors CEO Mary Barra testifies before the House Energy and Commerce subcommittee on Oversight and Investigation on Capitol Hill in Washington.