How should the car be programmed to act in the event of an unavoidable accident? Should it minimize the loss of life, even if it means sacrificing the occupants, or should it protect the occupants at all costs? Should it choose between these extremes at random?
Why Self-Driving Cars Must Be Programmed to Kill - http://www.technologyreview.com/view/542626/why-self-driving-cars-must-be-programmed-to-kill/