former president of south africa, he was awarded the noble peace prize in 1993 along with nelson mandola. in recognition to end apartheid and initiate the first fully democratic constitution in africa. and electric wallsa was president of poland awarded the nobel peace prize in 19 3 as the founder of the solidarity movement that led the polls out of communism. his contribution, the end of the cold war, stands beside that of his fellow poles. were proud to have you all here together on this stage. [applause] is that a high five? we are together to talk about new challenges for peace with men who change it had course of history, but they are here also with a message for all the young people who are here in this audience and all who are watching not just across america but in many places around the world in that you too have the tools to bring about change and the proof is very simple. there are many examples but perhaps the most global one happened just in 2010 in december when a series of protest business young people that started in tunisia and spread to egypt and libya and syria and to