We're living in crazy-town, maybe we always were. What is to stop the A.G. from publicly saying "Yes, disclose away!" and then to privately send one of those magic-do-anything-we-say requests saying, "Don't disclose X, Y, and Z."? Or if we are given an accurate count today, what is to prevent the government from in the future secretly retracting that privilege?
I think in the end we can be satisfied by nothing less than some sort of "Too Many Secrets" Constitutional Amendment, stating clearly that no private citizen can be required or compelled to partake in a "National Security" cover-up, so that everyone currently bound up in the web of lies could speak up without fear of persecution.
That is what galls me as much as anything. If the government wants to gather data and keep secrets, let them gather and keep them themselves. Drafting people against their will into compulsory service in signals-intelligence, forcing them to lie to their loved ones and the world, and persecuting them for honesty, is absolutely amoral.