I don't have a specific position that I'm defending. I'm trying to learn some more historical perspective, and to understand your political philosophy in general.
In that contest, 20 years is the single beat of a heart. 20 years ago, the media was entirely controlled by a handful of corporations, and you had no means whatsoever of telling an audience as large as the one you have now that you think America died on 9/11.
Say you want to make the NSA drama especially bad for Obama, and assert that the worst of their snooping is just a couple years old. A couple years. Just a few neurons have fired in that interval. Maybe wait for a few more before we rush to judgement at a world historical scale.
In world historical terms, yes. But not in US historical terms, which is what matters here.
You may actually be right, depending on when you were born. If you were born in the 80s, then things weren't too bad (unless you were a homosexual or other estranged group, of course). I think tptacek is reasonable to counter that, a decade or two earlier, things were noticeably worse than they were now. That's not to say that he's justifying what's going on now with "well, this is fine, because Vietnam was way worse".
You know who else thinks that the current period of time is absolutely the scariest, most dangerous time in American history? The kind of politicians who enact the laws that you are opposing.