FILE - In this Monday, Sept. 12, 2016, photo, a group of self-driving Uber vehicles position themselves to take journalists on rides during a media preview at Uber's Advanced Technologies Center in Pittsburgh. On Monday, March 27, 2017, Uber said it is resuming its self-driving car program in Arizona and Pittsburgh after it was suspended following a crash over the weekend. The company had also grounded self-driving cars in San Francisco over the weekend but they resumed operating earlier on Monday. The company said that it paused the operations over the weekend to better understand what happened in Arizona, but feels confident in returning the cars to the road. (AP Photo/Gene J. Puskar, File)
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