BLITZER: Good morning and welcome to our special coverage from here in New York at the United Nations. I'm Wolf Blitzer.</s>AMANPOUR: And I'm Christiane Amanpour, and we want to welcome our viewers in the United States and around the world. The President of the U.S. is expected to speak shortly. And at any moment he'll stand before the U.N. General Assembly and deliver a speech that he says will be more blunt than others he's delivered on this world stage in the past.</s>BLITZER: He'll be followed by many of the most powerful and controversial leaders in the world. Each will push their own agenda but all will address change and conflict that's unfolding dramatically around the world right now. We have our White House correspondent Michelle Kosinski, our national correspondent Jim Sciutto, and our U.N. Richard Roth. Richard, the president of Brazil opening up this 70th Anniversary General Assembly event right now as we speak. Brazil, I take it, always goes first. Is that right?</s>RICHARD ROTH, CNN U.N. CORRESPONDENT: That's right. Over 60 years ago, what happened is they didn't know who should speak first when they decided to have these speeches, and Brazil volunteered. And there you go. And then the U.S., as the host country, follows second. President Obama, we're still waiting for his arrival here. I think they usually time this out so that he doesn't stand and wait backstage. This is the U.N.'s 70th Anniversary. It is amazing to see this cavalcade of international diplomats and leaders walk in, in the last hour and a half. I don't want to get too cozy about it, considering the amount of death and destruction going on in the world. Sort of like the Diplomatic Oscars.
World Leaders to Address Change and Conflict.