Judges of the German Constitutional Court (Bundesverfassungsgericht) second senate leave the courtroom in Karlsruhe in this September 12, 2012 file photo. Germany’s Constitutional Court said on February 7, 2014 it had decided to refer a complaint against the European Central Bank’s (ECB) “unlimited” bond-buying programme to the European Court. REUTERS/Kai Pfaffenbach/Files (GERMANY – Tags: BUSINESS POLITICS CRIME LAW)