Who said that Germans have no sense of irony?

On 5 May, Germany’s Constitutional Court ruled that the European Central Bank’s Public Asset Purchasing Programme could be incompatible with the German Constitution. Waltraud Schelkle writes there is a deep sense of irony in the ruling: the German Court questions the legal foundations of the ECB’s independence but is actually prevented from succeeding by the constitutional fortifications of the ECB’s independence on which the German government always insisted.