Britain's Chancellor of the Exchequer, Alistair Darling, arrives for the G20 Finance Ministers meeting at the Treasury, in central London September 5, 2009. Finance ministers and central bankers from the G20 nations were meeting in London on Saturday to lay the foundations for a summit of leaders in the U.S. city of Pittsburgh later this month. REUTERS/Dominic Lipinski/Pool (BRITAIN BUSINESS POLITICS)