Former Portuguese President Jorge Sampaio, former Ireland President Mary Robinson, former Norwegian Prime Minister Kjell Magne Bondevik, former Iranian President Mohammad Khatami, former U.N. Secretary-General Kofi Annan and former Italian Prime Minister Romano Prodi (L to R) attend the "Religion in the Modern World" conference in Tehran October 13, 2008. REUTERS/Raheb Homavandi (IRAN)