There is a common cause. Humans. You mention both Cost Savings and Design Mistakes. Those are common, and will occur in future projects. Don't think totalita

There is a common cause. Humans. You mention both Cost Savings and Design Mistakes. Those are common, and will occur in future projects. Don't think totalitarian Gov has any monopoly on hiding design problems. Every company does it. Those are both things, drives, that the US has shown to be incapable of administering. All industry is rife with cost cutting. And "safety" is very much cut in the name of profits. It happens today, just not 'obvious'. We don't hear about it until there is a meltdown. I do hope that new designs are better. But I am absolutely not confident that humans have learned anything and wont subvert any improved designs again for cost savings.