You have that problem in every industry where your products can kill people. If you produce cars, medical devices, Space Shuttles or drugs there is a good chanc

You have that problem in every industry where your products can kill people. If you produce cars, medical devices, Space Shuttles or drugs there is a good chance that a mistake will kill people. There is no way around it and people have to deal with it. You only hope that you can be confident that you have done your best with the knowledge you had at the time.