Former Soviet Union leader Mikhail Gorbachev, former Solidarnocz (solidarity) trade union leader and former Polish President Lech Walesa and former South African President Frederik Willem de Klerk (R-L) applaud following the opening speech of Berlin Mayor Klaus Wowereit (not in picture) at the beginning of the 10th World Summit of Nobel Peace Laureates in Berlin November 10, 2009. Reuters Pictures logo Reuters Pictures 27 months ago

Former Soviet Union leader Mikhail Gorbachev, former Solidarnocz (solidarity) trade union leader and former Polish President Lech Walesa and former South African President Frederik Willem de Klerk (R-L) applaud following the opening speech of Berlin Mayor Klaus Wowereit (not in picture) at the beginning of the 10th World Summit of Nobel Peace Laureates in Berlin November 10, 2009.