FILE - In this Thursday, Dec. 15, 2016, file photo, General Motors Chairman and CEO Mary Barra speaks next to a autonomous Chevrolet Bolt electric car, in Detroit. General Motors says it has built 130 self-driving Chevrolet Bolt electric cars at a factory in suburban Detroit. The cars are equipped with GM's second-generation self-driving software and equipment. (AP Photo/Paul Sancya, File)
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