Can someone with knowledge answer questions about the current state of autonomous cars:

1) What do these cars do in ambiguous driving environments: construction zones, poorly/under relined lanes, freshly paved roads, hazards, dark/rainy roads where camera images are useless, etc.

2) How do these cars handle system failure while driving? Blown tire, engine failure, etc.

3) Is there "Moral Decision Engine" code in current generation cars? E.g. person runs out in front of an autonomous car, the car chooses to spare the person by veering off and hitting some inanimate object. I can imagine a class of accidents in traditional hands-on cars where a driver hurts himself in order to avoid harming a pedestrian. Is such moral logic hard wired into autonomous cars?