(Reuters) - Germany said European banking union will require changes to EU law, in a call that could slow completion of the plan designed to underpin the euro currency. Speaking after a meeting of European Union finance ministers on Saturday, Germany Finance Minister Wolfgang Schaeuble said the EU's Lisbon treaty had to be changed to allow common rules on shutting troubled banks - a central element of the union. "Banking union only makes sense ... if we also have rules for restructuring … [Read more...]