US Davis Cup tennis player John Isner reacts after he defeated Swiss Davis Cup player Roger Federer during a Davis Cup World Group first-round second match between Switzerland and the US in the Forum Arena in Fribourg, Switzerland, Friday, Feb. 10, 2012. (AP Photo/Keystone/Laurent Gillieron)
Participants listen a panel session in the Congress Hall the last day of the 43rd Annual Meeting of the World Economic Forum, WEF, in Davos, Switzerland, Saturday, Jan. 26, 2013. (AP Photo/Keystone/Laurent Gillieron)
Participants listen a panel session in the Congress Hall the last day of the 43rd Annual Meeting of the World Economic Forum, WEF, in Davos, Switzerland, Saturday, Jan. 26, 2013. (AP Photo/Keystone/Laurent Gillieron)
** FILE ** Bob Diamond, chief executive of Barclays bank, listens during a plenary session at the World Economic Forum meeting in Davos, Switzerland, in January 2010. (AP Photo/Keystone, Laurent Gillieron)
** FILE ** Bob Diamond, chief executive of Barclays bank, listens during a plenary session at the World Economic Forum meeting in Davos, Switzerland, in January 2010. (AP Photo/Keystone, Laurent Gillieron)
U.S. Secretary of State Hillary Rodham Clinton waves as she arrives for a meeting of the Action Group for Syria at the European headquarters of the United Nations, in Geneva, Switzerland, Saturday, June 30, 2012. (AP Photo/Keystone, Laurent Gillieron)
U.S. Secretary of State Hillary Rodham Clinton waves as she arrives for a meeting of the Action Group for Syria at the European headquarters of the United Nations, in Geneva, Switzerland, Saturday, June 30, 2012. (AP Photo/Keystone, Laurent Gillieron)
A police officer works at the wreckage of a tourist bus from Belgium at the accident site in a tunnel of the A9 highway near Sierre, western Switzerland, early Wednesday, March 14, 2012. (AP Photo/Keystone, Laurent Gillieron)
US Davis Cup tennis player John Isner reacts after he defeated Swiss Davis Cup player Roger Federer during a Davis Cup World Group first-round second match between Switzerland and the US in the Forum Arena in Fribourg, Switzerland, Friday, Feb. 10, 2012. (AP Photo/Keystone/Laurent Gillieron)
