You could make it illegal to control more than one issuing authority.
There's all kinds of cool things you can do if people put you in charge and gave you a gun. But you have to take people's freedom away to do it, and that's an awfully high a price to pay. The challenge is to come up with ways to make people's lives better than don't require people to threaten each other into going along with the scheme. Ideally, this time no one would have to get nailed to anything.