Robots move racks of merchandise at an Amazon fulfillment center in Tracy, Calif. When a robot finds its storage unit, it glides underneath, lifts it up and then delivers it to a worker. Justin Sullivan/Getty Images hide caption

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Justin Sullivan/Getty Images

Online Retail Boom Means More Warehouse Workers, And Robots To Accompany Them

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A group of people walk on Castro Street, in the downtown portion of the Silicon Valley town of Mountain View, California, August 24, 2016. (Photo by Smith Collection/Gado/Getty Images). Smith Collection/Gado/Getty Images hide caption

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Smith Collection/Gado/Getty Images

On Saturday, firefighters investigate the scene of the overnight fire at the Ghost Ship warehouse in the Fruitvale neighborhood of Oakland. Elijah Nouvelage/Getty Images hide caption

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Elijah Nouvelage/Getty Images

Deadly Fire In Oakland May Spur Crackdown On Off-The-Grid Artists' Spaces

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Chevron Corp. supported several candidates in Richmond, Calif., where the company has been hoping to modernize a large oil refinery, seen here in 2010. None of the Chevron-backed candidates were elected. Paul Sakuma/AP hide caption

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Paul Sakuma/AP

A Bay Area Rapid Transit (BART) train sits in the Rockridge station on Friday in Oakland, Calif. San Francisco Bay Area commuters were bracing for the possibility of a BART strike as a 30-day contract extension was set to expire Sunday at midnight. Justin Sullivan/Getty Images hide caption

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Frustrated commuters wait at the Transbay Temporary Terminal in San Francisco to catch a bus over to Oakland on Tuesday. Alan Greenblatt/NPR hide caption

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Alan Greenblatt/NPR

The Fruitvale BART station is closed Monday due to a strike in Oakland, Calif. Negotiations between unions and management broke off late Sunday despite the request of California Gov. Jerry Brown in a last-ditch effort to reach a deal. Ben Margot/AP hide caption

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Ben Margot/AP