GM's Mary Barra blasted by senators on ignition switch defect

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GM's Mary Barra blasted by senators on ignition switch defect

GM's Mary Barra blasted by senators on ignition switch defect
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GM's Mary Barra blasted by senators on ignition switch defect

CBSTV Videos 2:36 mins

Senators grilled General Motors CEO Mary Barra about why a defect linked to 13 deaths was kept from the public for a decade. CBS News' Jeff Glor reports.

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