they re accused of plotting to blow up the nato summit in chicago. and who is the fairest of them all? it could be the one born a man. hello, everyone. i m don lemon. thank you so much for joining us. world leaders are converging on the u.s. this weekend for two huge global gatherings making decisions that could affect all of us. the nato summit gets started tomorrow in chicago. the g-8 summit already under way in camp david, maryland, where leaders of the world are trying to hammer out a strategy to fix the world any. they re concerned that a collapse of the greek economy could affect all of europe and even the united states. beyond those concerns are iran s nuclear ambitions dominating discussions. what are leaders saying about irob? don, aheads of a crucial week, because it s this week that u.n. security counsel permanent members like the u.s. and others begin talks with iran on their alleged nuclear weapons program. you see the nations here trying to present a united