Earlier quoted context omitted.
> "the fact that the backup diesel generators and the switchgear for them were sited behind a seawall that was overcome by the tsunami" Sure, but who's responsible for that? I don't mean to say that there must be many technical causes of incidents, but rather that it is almost impossible to find a situation where there is a singular human cause. The multitude of engineers that saw the plans before they went final? Th…
it is almost impossible to find a situation where there is a singular human cause. But if you can focus in on a single technical decision that had such a large impact, you can at least focus attention on how that particular technical decision got made. Yes, many humans will have been involved even in that single technical decision; but it's still a lot more manageable to look into how it got made than to look at how…
Such things sometimes can't be predicted. If you fall asleep because of exhaustion, you don't necessarily see it coming (it happened to me several years back, one minute I was fine and the next I blacked out). You cannot criminally persecute a person for falling asleep. Only if he did something against the law, like also being under the influence of alcohol.
> Did the supervisor actually threaten him into taking an extra-long shift?
You know very well that supervisors rarely have to threaten their subordinates in low-end jobs. I have a personal acquaintance who's a truck driver. And he was explaining to me how when the new management came in, they first did some lay-offs based on silly reasons and after that nobody dared arguing.
Also do some reading on Japanese culture. Subordinates rarely question their bosses (or change jobs for that matter). It happens in many cultures. If you're from the US, then what's natural to you may not apply in other countries or cultures.
I'm not saying that blame cannot be assigned (it can clearly be, especially in the case of broken engineering designs), but seeing people here suggesting "ritual suicide"? OMG.