FILE - In this April 24, 2008, file photo, Detroit police officers block an entrance to the American Axle and Manufacturing Holdings plant in Detroit. Google's self-driving car spinoff Waymo says it will reopen an axle plant in Detroit to convert conventional vehicles so they can drive autonomously. The company says it will lease a now-closed American Axle & Manufacturing plant north of downtown so it can convert the vehicles, mostly Chrysler Pacifica minivans. (AP Photo/Carlos Osorio, File)
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