As we commented back in June, one of the key questions posed by the important ruling of Europe‘s highest court that the EU‘s current data retention requirements were „invalid“ is: so what will the EU‘s Member States do now? Will they simply repeal their national legislation that was passed to implement the EU Directive, or will they claim that broad-based data retention is nonetheless still possible, as the UK has done? Although the UK government will doubtless try, it‘s going to be much harder to argue that the European Union‘s Court of Justice ruling leaves any room for the kind of broad-based data retention that David Cameron‘s government wants in the wake of the following news: