HARDtalk

In the run up to London's much hyped G20 summit, HARDtalk is in Paris talking to France's Finance Minister, Christine Lagarde. On the key issues facing the G20 - from the need for more fiscal stimulus, to the role of economic nationalism, and the scope for further regulation - Nicholas Sarkozy's France has at times seemed out of sync with Barack Obama's America. But just how real are those differences? Christine Lagarde talks to Stephen Sackur.