I'm still trying to work out why the radar system in all the Teslas that have been involved in "autopilot" crashes (and there have been a few, some unfortunately fatal), didn't detect the obstructions up ahead and slow down/stop.
To me it seems logical that radar obstruction detection should take higher priority than image recognition and if working properly (how hard can that be?) would deliver a rather basic safety function that seems to have been missing in each case.