From The Wall Street Journal: After pedestrian death, questions about the future of self-driving cars

After an Uber self-driving car hit and killed a pedestrian in Arizona, some people are asking if self-driving cars are truly ready to be out on the streets. While some states in America ban self-driving cars, many are allowing them to be tested on public roads. But is the technology really ready? In this podcast, The Wall Street Journal takes a look at the state of the tech and its track record.