There seems to be a common narrative in all of the recent (~5 years or so) environmental disasters in the US - subjectively, most of them seem to have been caused, at least in part, due to corporate negligence: either an antiquated safety component in disrepair, or a safety component completely omitted contrary to regulations. I'm not sure what the solution is, certainly dispatching an army of inspectors is not cost effective. Just something that stood out in my mind.