DAVOS/SWITZERLAND, 28JAN10 - Klaus Schwab (R), Founder and Executive Chairman, World Economic Forum welcomes William J. Clinton (L), Founder, William J. Clinton Foundation; President of the United States (1993-2001); UN Special Envoy to Haiti, during the 'Special Session on Haiti' at the Congress Centre at the Annual Meeting 2010 of the World Economic Forum in Davos, Switzerland, January 28, 2010.