What to do about “grand corruption? An estimated $17.6 trillion in murky money is held in tax havens, unidentified bank accounts or shell companies around the world — some of it acquired illegally through corruption, crime or tax evasion.

by Celestine Bohlen

BERLIN — The banking giant HSBC was outed by an international consortium of journalists for having systematically helped wealthy clients hide billions of dollars in assets, thus avoiding international tax police and criminal investigations.