Strictly speaking, I agree. The defining difference to me, though, is that things like "using Facebook" are voluntary. I can choose to just not use Facebook at all. I can't really opt out of being spied on by the US government.

And even though I'm a radical libertarian, EFF supporter, etc., exactly the kind of person you would normally expect to be very worked up over these kind of privacy issues, I have a different take when it comes to sites like Facebook. That is, I've always assumed that anything I post on Facebook is effectively public, and so anything that I don't want seen, I just don't post to begin with. And I don't use Facebook Messenger for sensitive conversations... to me, that's mainly for "hey what you doing this weekend", "wanna catch a movie" chit-chat.

Of course I understand that other people are operating from different base assumptions, and so they are going to react differently. Still, the USG worries me more than Facebook, Twitter, Google, and their ilk.