Millions of documents are leaked that show however a number of the world's wealthiest and most powerful individuals are ready to launder cash, dodge sanctions and avoid tax. Eleven million documents from the offshore finance specialists Mossack Fon-seca are free -- creating it an even bigger information leak than the Wikileaks revelations. Mossack Fonseca, that relies in Panama, has denied any wrongdoing. Our special correspondent Richard Bilton reports