...Clark, what "ugly truth" emerged?
Well notwithstanding the action of the truck, the Tesla driver should have been alert enough to see the danger and apply the brakes when the Autopilot system was momentarily blinded. Similar to an advanced 'cruise control' system, as I understand the Tesla Autopilot system, it merely keeps you between the white lines and acts as a backup for other possible hazards.
But the indication is that the Tesla driver was doing something else at the time...watching the dashboard TV? And he was failing to monitor the Autopilot system, all the way into the side of the truck where he was decapitated, according to this ABC report
. Ugly enough for you?
And that's why Google pulled the plug on developing a similar system; the ugly truth their tests showed was that drivers just couldn't keep their attention on the road with those partially autonomous driverless cars, even to the extent of climbing into the back seat and falling asleep!