I think there are a lot of options -- a constitutional amendment comes to mind first. Make it a crime to keep any secrets longer than a certain period of time.

I think there are a lot of options -- a constitutional amendment comes to mind first. Make it a crime to keep any secrets longer than a certain period of time. All sorts of options there. How can a constitutional amendment help, unless it's backed by a threat? The powerful have repeatedly shown that they don't respect the rule of law. It's a pleasant fiction. It's just not the way the world works. You can't realistically expect those in power to modify their behaviour to your liking unless you somehow have power over them. You can't realistically take on an establishment (if that's your thing) by playing by their rules. There has to be an element of threat, which will appear reckless.