text: In this Dec. 12, 2011 file photo the bull and bear bronze statue stands outside the stock market, Deutsche Boerse AG, in Frankfurt, Germany. Germany's Deutsche Boerse said Tuesday, March 20, 2012, it will sue the European Union's competition regulator over its decision to block the company's US dollar 10 billion merger with NYSE Euronext. Deutsche Boerse said it considers the decision by the European Commission to block the deal to be "faulty" on several aspects and will take its complaint to a European court in Luxembourg.