a reg lore agency approved expansion of the driverless car services in san francisco. hello. i can t hear you. i couldn t have predicted it any better. reporter: san francisco city leaders including fire chief jeanine nichols requesting more testing for the innovative but potentially dangerous technology. just days after california s public utility commission voted to allow cruise and waymo to roll out more cars at expanded times, a cruise car and a fire truck collided. 000 the state s dmv is investigating, and cruise has been ordered to reduce its fleet by half until further notice. it could cost someone their life. when an autonomous vehicle impacts our ability to respond to an emergency incident, it can impact someone s survivablity. reporter: data fro city