There's no way the execs can deny they knew everything by the time the second plane crashed. It's damn if they do, damn if they don't. If they didn't know, why

There's no way the execs can deny they knew everything by the time the second plane crashed. It's damn if they do, damn if they don't. If they didn't know, why the hell not?! A plane crashed, why wouldn't they demand to know? That's negligence. If they did know, they had months to make a decision that would have saved the second plane and did nothing.