"Best to just sweep that one under the rug."
Is that your opinion or are you just saying that's the way the ruling class thinks?
Otherwise, I think the comment is completely wrongheaded. "A screw-up"?? "the very foundations of government"?? How about real accountability? How about figuring out what REALLY went wrong so we can stop it from happening again? How about rooting out the rot that allowed this monumental tragedy to happen?