Self-driving cars could save many lives. But mental roadblocks stand in the way

As we get ever closer to the era of driverless cars, a key question looms: How safe should autonomous vehicles be before we allow them on the road in large numbers?

https://www.wsj.com/articles/self-driving-cars-could-save-many-lives-but-mental-roadblocks-stand-in-the-way-11617732000