This blog remains agnostic on the subject of whether the euro should continue as a currency. European nations have the option of amending the EU's governance to enact continent-wide taxation and fiscal unity. Short of that, insolvent member states (or their unwilling creditors) will drop out of the union one by one should the EU ever try to enforce the terms of bailouts and debt restructuring deals.
Okay, who wants gyros for dinner? You're buying.