BOSTON (AP) — Imagine you're behind the wheel when your brakes fail. As you speed toward a crowded crosswalk, you're confronted with an impossible choice: veer right and mow down a large group of elderly people or veer left into a woman pushing a stroller.

Now imagine you're riding in the back of a self-driving car. How would it decide?

Researchers at the Massachusetts Institute of Technology are asking people worldwide how they think a robot car should handle such life-or-death decisions. Their findings so far show people prefer a self-driving car to act in the greater good, sacrificing its p...