The Fukushima situation was predicted, several times, and TEPCO were warned about the dangers of having basement emergency generators at least 6 times. Nothing

The Fukushima situation was predicted, several times, and TEPCO were warned about the dangers of having basement emergency generators at least 6 times. Nothing happened, because fixing that would cost money. The sea wall was artificially lowered from 30 metres to 10 metres, because keeping it at 30 during construction would have cost more money. At the end of the day it's money.