Peter Gottwald, Germany's International Atomic Energy Agency (IAEA) Ambassador, briefs the media during an IAEA board of governors meeting at Vienna's U.N. headquarters in Vienna September 10, 2007. The chief of the U.N. nuclear watchdog Mohamed ElBaradei will tell sceptical nations on its governing board this week Iran's pledge of atomic transparency should be given a chance to work, not dismissed as a time-buying ruse. REUTERS/Herwig Prammer (AUSTRIA)