So, basically, your saying that they should just expect everybody to simply trust that what they're doing is entirely legal?
Where did I say or imply anything like that? I'm no more a fan of what NSA is doing than anyone else here. They are disliked throughout the rest of the intel community too, btw.
If climate science is really worthwhile
You mean our atmosphere, the thing that keeps us alive and will hopefully continue to do so in the future as long as we don't fuck it up? That thing? Yeah, totally not worth the sliver of NASA's small budget.
Or is it even remotely practical to identify specific package/truck combinations?
Maybe. But also know who is driving ahead of time and know their address, relatives, etc? Less likely.
The trouble with being punctual is that people think you have nothing more important to do.