Uber's self-driving cars are back on the road, nine months after a fatal accidentThe company says it conducted a "top-to-bottom" audit of its safety policies.[Collection]

The company says it conducted a "top-to-bottom" audit of its safety policies.https://www.cnbc.com/2018/12/19/uber-resumes-self-driving-car-tests-nine-months-after-fatal-accident.html