Good piece. I'd add that reforming FISC would be another bullet item in of itself, from appointing adversarial representatives, to shedding light on the judicial underpinnings of justified mass metadata collection (the rulings that have come out have been very dubious on this point.)

Obviously this piece focuses on what we should do politically, which is necessary and important, but in the meantime, we can also try to do things that technologically "restrain" them.

Getting everyone to use gpg probably seems impossible. But if we're talking about getting the reforms listed in the article through both houses and the executive (or at least the courts), getting everyone to use gpg doesn't seem so bad.