If you want a better example of a nuclear accident caused by a science BLOOOOOOOOOOOOOOOOOOOOOPEEEEEEEEEEEER, I'd point to the nuclear accident from the late 1950s (which I might have already referenced in this thread). There weren't anywhere near the level of failsafes at this place, and when a guy pulled a control rod out too far (it's unclear to this day whether he did it on purpose or accidentally), it shot out the rest of the way on its own, impaled him against the roof of the building, and nearly instantly killed the other two people at the station at the time. There were two teams of guys who went in to inspect the place - they had to get out after just a minute due to the high radiation levels. If memory serves, they all ended up dying of cancer. Then a couple nurses confirmed the state of the bodies and a guy drove them far enough away from the reactor that they could be buried on their own. All 3 of them died of cancer too, I think.