Minister of Commerce of the People's Republic of China, Chen Deming (L), and World Trade Organization (WTO) Director-General, Pascal Lamy, attend a session at the World Economic Forum (WEF) in Davos, January 27, 2011. Currency tension has not damaged trade so far but there is a risk that it could increase protectionist pressures, Lamy said on Thursday. REUTERS/Christian Hartmann (SWITZERLAND - Tags: POLITICS BUSINESS)