Good practice should really follow the joke about airliners: the ideal flight deck crew consists of pilot and dog. The pilot is there to look after the dog, the

Good practice should really follow the joke about airliners: the ideal flight deck crew consists of pilot and dog. The pilot is there to look after the dog, the dog is there to make sure the pilot doesn't touch anything. Even the RBMK reactors, which had lecturers in the 1960s pointing out safety flaws, needed human intervention (and quite a lot of materials fraud) to actually go boom. TMI similarly needed some humans to fix it until it was broken (also why there is a genuine good-faith lobbying argument to mandate less maintenance sometimes, especially as higher-quality equipment wears slower). You'd still need security, and frankly security for the security, though.