Let's say a truck company released a commercial 18-wheeler, which was 14% more fuel efficient than comparable trucks on the market. But it had a flaw, which was a tendency to drift to the right. So they added some sensor to detect whether the vehicle was drifting right, and automatically steer to left correct it. Problem is sometimes the sensor failed, and it would steer to the left when it was travelling in a straight line. Now the company knew about this flaw, which had caused a multiple fatality accident when a truck veered into oncoming traffic, but their response was to circulate a memo to all trucking companies informing them of the problem, but otherwise not taking any other corrective action, such as recalling the truck, or forcing recertification of drivers.