HARDtalk - Pascal Lamy - Director General, WTO

The director general of the World Trade Organisation, Pascal Lamy, has one of the most thankless tasks in global politics; he has to make the case for free trade in the current climate of economic fear and pessimism. He says that doing a world trade deal now is more important than ever. Stephen Sackur asks if his message will be adhered to or be swept away in the growing tide of economic nationalism.