Oh, only 800? Maybe you can pick a larger imaginary number to make me feel really guilty about not wanting to give up my rights to live free of surveillance.
They wrote a 600 page report about it and it included a ton of recommendations. Not many people remember at this point, but for months and even a few years after, the entire country was on edge about it happening again, in different means (trains, car wrecks on purpose, shootings). There is a reason they have called this a post-911 world ever since. That hasn't ended.