Anti G20 demonstrators wearing masks portraying U.S. President Barack Obama (R), Germany's Chancellor Angela Merkel (L) and France's President Nicolas Sarkozy (C) take part in an action against globalisation in Nice, southeastern France, November 3, 2011. G20 leaders gather in Cannes for the final Summit of France's presidency November 3-4. REUTERS/Jean-Paul Pelissier (FRANCE - Tags: BUSINESS POLITICS CIVIL UNREST)