You are driving down a city street and are about to pass by two people.  In the first case they are middle aged and engaged in a conversation but walking in a consistently straight line.  What do you do?  Case two they are two men, teens or in their twenties, they seem to be talking excitedly to each other and begin shoving .  What  do you do?<br>The solution requires cultural knowledge. <br>When the accident happens who pays? The car manufacturer or the person in the driver seat.  For a gross error who goes to jail?<br>Self driving cars may be further off than you think.