The wife of Britain's Prime Minister, Sarah Brown, speaks at a charity lunch, in aid of the White Ribbon Alliance for Safe Motherhood, at Lancaster House in London March 27, 2008. French President Nicolas Sarkozy and Prime Minister Gordon Brown, on the second day of a state visit, called on Thursday for banks to declare the full extent of the damage to their operations caused by the credit crunch. REUTERS/Luke MacGregor (BRITAIN)