Brussels, 04/11/2009 (Agence Europe) - On Wednesday 4 November 2009, the European Commission opened an in-depth investigation into support measures for the German savings bank Sparkasse KölnBonn. At the end of 2008 and the start of 2009, the capital of Sparkasse KölnBonn was strengthened by a total of €650 million by the issuing of certificates of participation and by a so-called "silent participation," where investors receive remuneration but do not have voting rights. The coupon for...