EU should build a mechanism which monitors the way of money use
I think that European countries should unify the whole finances completely.
It caused "how of currency to use money although it is together is scattering in each country" was the cause.
I think the European countries should discuss that how to use the money ,and make an arrangement of supervision.
I think it is necessary not to make financial trouble by building strong ECB.
Euro has been ten years since it started, but I think that EU can overcome this problem.