https://motherboard.vice.com/en_us/article/j5a8d3/self-driving-car-policy-uber

The recent fatality involving a self-driving Uber vehicle won’t be the last incident where human life is lost. Indeed, no matter how many lives self-driving cars save, accidents still will happen.

Imagine you’re in a self-driving car going down a road when, suddenly, the large propane tanks hauled by the truck in front of you fall out and fly in your direction. A split-second decision needs to be made, and you can't think through the outcomes and tradeoffs for every possible response. Fortunately, the smart system driving your car can run through tons of scenarios at lightning fast speed. How, then, should it determine moral priority?