Eight months after a fatal crash, the vehicles are expected to be back on Pittsburgh streets within a few weeks, but safety questions remain. https://ift.tt/2AWxOqc The New York Times Eight months after a fatal crash, the vehicles are expected to be back on Pittsburgh streets within a few weeks, but safety questions remain. https://ift.tt/2rvhoRD Eight months after a fatal crash, the vehicles are expected to be back on Pittsburgh streets within a few weeks, but safety questions remain.By DAISUKE WAKABAYASHI and KATE CONGER from NYT Technology https://ift.tt/2rvhoRD
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