I think that what the autonomous car is programmed to do in these situations should be kept secret. That way it will be no different than travelling by bus, plane, train or taxi is now. We don't know what the pilot, driver or engineer will do in a crash even if we know what they are supposed to do.
Who do you want to trust; the pilot, the cab or bus driver, the engineer, or the computer programmer?
Biting the hand that feeds IT
