1) I don't take the snowden leaks as gospel, sorry.
2) Even if i did, "most peoples adversary" is a meaningless phrase at this point, and also used quite often as a rhetorical feint to take down someones arg. And given the profound unification of the security state across seemingly all lines, its also dead wrong. Technically everyones adversary is the NSA, as long as data is shared surreptiously and , more and more, openly and legally between TLA's, state, and local LEAs.
3) GPG may be an excellent tool, the first time you use it, but if you transmit anything encrypted you are automatically targeted, another point directly from the snowden docs, no? And since virtually no one is going to use one time devices and farraday cages unless your model of communication is "I just have to get this one message out, then I'm good" its worse than useless, given that it will only make you more of a target.
"1) I don't take the snowden leaks as gospel, sorry. "
Don't take them as gospel. That's faith. Review the evidence they're true from U.S. governments' reaction to them to what similar malware was found by third parties. Once evidence is in, then you have reason to believe them and then in stuff such as GPG by extension. And the leaks didn't say anything about faraday cages. Just that they had to rely on the extremely-limited resources of TAO... such as targeted attacks on specific sites/configurations/endpoints... if the target used something strong.
the idea that "evidence" comes from the govts reaction is just weak, its just a terrible argument. Extrapolating from that is also largely a mistake. Any number of possible interpretations of the docs themselves and the responses by the state could and have been made, each of which could point to mutually exclusive conclusions for toosl mentioned in the docs. This isn't a particularly novel argument (my arg, I mean) either. I wasn't pulling the faraday cages from the docs themselves, as well, I was positing that as an extreme example of data security.