Talk, introduce or announce any new emerging technologies that have excited you.
Plus what if someone managed to hack into the system, think hitmen ... or if it was a central inteligence someone could hold an entire country to ransom
There may come a day when the courage of men fails, When we forsake our friends and break all bonds of fellowship, but it is not this day, An hour of wolves and shattered shields, When the age of men comes crashing down, But it is not this day! This day we fight! By all that you hold dear on this good earth I bid you stand! Men of the west!
I don't think it will ever happen, if a car could drive itself to a destination. What would stop it from causing a accident?
It would happen by Artificial Intelligence science!