Michele Kelemen

The U.S. and other Western countries are often trying to isolate Iran, but this week the country is in the international spotlight as it hosts a summit of 120 nonaligned nations.

U.N. Secretary-General Ban Kim-moon decided to go, ignoring the advice of Israel and the U.S. He promised to deliver a tough message, but others are skeptical, arguing that his visit plays into the hands of the Iranians and to U.N. detractors in Washington.

Secretary General Ban Ki Moon is expected to tap a veteran U.N. troubleshooter to take over from international envoy Kofi Annan. At the same time, U.N. military observers are wrapping up their mission. By next week, all of the unarmed U.N. military observers will be out of Syria.

Republican presidential candidate Mitt Romney says America's national security priority should be preventing Iran from acquiring a nuclear weapon, and he was talking tough about this in his recent stop in Jerusalem.

"History teaches with force and clarity that when the world's most despotic regimes secure the world's most destructive weapons, peace often gives way to oppression, to violence, or to devastating war," Romney said. "We must not delude ourselves into thinking that containment is an option."

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STEVE INSKEEP, HOST:

President Obama disagrees with Russia's president Vladimir Putin over what to do about Syria. The U.S. thinks it's time for Syrian president Bashar al-Assad to go. The Russians aren't so sure. The American and Russian leaders met yesterday during a summit of global leaders and they at least agreed that they prefer a political solution to Syria's problems. They hope to avoid a civil war. They just don't agree how to do it. NPR's Michele Kelemen reports. Transcript provided by NPR, Copyright National Public Radio.

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It's MORNING EDITION, from NPR News. Good morning. I'm David Greene.

RENEE MONTAGNE, HOST:

And I'm Renee Montagne. The U.N.'s envoy to Syria has not given up on his peace plan - even after another gruesome massacre of villagers; even after U.N. monitors were fired upon at a government checkpoint when they tried to investigate the latest killing. Instead, U.N. envoy Kofi Annan is asking for more help to stop the violence in Syria, from the West and from Syria's neighbors.

U.S. diplomats were relieved this weekend when China allowed a prominent dissident, Chen Guangcheng, to fly to New York with his family.

China, too, is presumably happy that Chen is no longer in the country doing his advocacy work. Chinese exiles tend to fade into obscurity when they leave the country, and Beijing might be counting on that to happen with Chen.

But social media may be changing this equation.

U.S. diplomats are breathing a sigh of relief Sunday after a human rights activist sheltered briefly by the U.S. embassy in Beijing was allowed to leave China and come to the United States. Chen Guangcheng arrived Saturday night with his wife and two children. He has a fellowship to study at New York University.

Chen appeared briefly before the cameras Saturday night in New York's Greenwich Village, where he will be living with his family and studying law.

The Obama administration is announcing a major new initiative to boost investments in rural Africa in hopes of lifting millions out of poverty. Several African leaders are in Washington, D.C., for the announcement, which comes as President Obama hosts leaders of the Group of Eight in Maryland. Food security is a key agenda item.