@gruber On Dithering you said:
“Yeah, and you can't look at any of the lasting effects and say, well, that, well, at least that part was good, right?”
I completely agree with your overall point. There are a few good things though. Background checks and better controls in airports to prevent people wandering around secure areas and locking strong cockpit door are great improvements.
That is genuinely all I can think of though. Might be other small ones. TSA? Ha.