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French President Nicolas Sarkozy, left, and US President Barack Obama walk together during arrivals for the G20 summit in Cannes, France on Thursday, Nov. 3, 2011. French President Nicolas Sarkozy will welcome Barack Obama of the U.S., Hu Jintao of China as well as the leaders of India, Brazil, Russia and the other members of the Group of 20 leading world economies in the city made famous by its annual film festival, but the event is far from the star turn the unpopular French leader had hoped to make six months before he faces a tough re-election vote. (AP Photo/Philippe Wojazer, Pool)

G20 summit

Europe's debt drama dominated talks among leaders of the Group of 20 leading economies Nov. 3, with Greece's government facing potential collapse and European leaders admitting that the eurozone may face losing its weakest member.