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."

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.

Republicans and Democrats don't agree about much on Capitol Hill these days, but there is one bill gaining bipartisan support. It's legislation that would punish human rights violators in Russia by naming them and denying them visas to the U.S. But the Obama administration is not on board yet. U.S. diplomats worry it could complicate relations at a time when the U.S. needs Russia's support most.

Sam LaHood, the son of U.S. Transportation Secretary Ray Lahood, spent four weeks holed up at the U.S. Embassy in Cairo, sleeping on an air mattress part of the time and trying to fathom why the Egyptians wanted to prosecute him and his pro-democracy colleagues.

Eventually, LaHood's organization and others with employees facing prosecution paid more than $300,000 a person in bail to get them off the Egyptian travel ban, and the U.S. government flew most of them home.

In several hours of talks, President Obama and Israeli Prime Minister Benjamin Netanyahu seemed to have different timelines and red lines on the issue of Iran's nuclear program: Obama said he prefers diplomacy and pressure; the Israeli leader made clear his country reserves the right to attack pre-emptively, saying Israel must remain master of its fate.

Just a few days ago, Secretary of State Hillary Clinton was in Tunis, Tunisia, meeting her counterparts from dozens of countries and issuing an ultimatum to Syrian President Bashar Assad to silence his guns and allow in humanitarian aid.

While in Morocco, before flying home to Washington, D.C., Clinton talked to NPR's Michele Kelemen.

Syrian tanks continue to batter homes, and no aid is getting in. So what are allies of the Syrian people to do?

Syrians are looking to the world in their hour of need and "we cannot let them down," U.S. Secretary of State Hillary Clinton said Friday at an international conference on Syria held in Tunisia.

The dozens of countries represented at the conference, Clinton said, are united in their demands: Syrian President Bashar Assad must allow much-needed aid to his people and silence his guns or face more isolation and pressure.

But debate continues over what other steps countries in the region could take.

The U.S. evacuated the staff of its embassy in Damascus earlier this month due to security issues. But that hasn't stopped Robert Ford, the U.S. ambassador to Syria, from using social media to keep in touch with events on the ground, and to try to shape them.

NPR's Michele Kelemen is a former employee of Voice of America.

Russian anti-corruption crusader Alexei Navalny has been the victim of many dirty tricks by pro-Kremlin media.

But when the U.S. government-funded Voice of America published an online interview that had him criticizing other Russian opposition figures, Navalny quickly tweeted that the interview was a fake.

"It seems the VOA has gone nuts," he wrote to his Twitter followers.

In a rapidly escalating dispute between allies, 43 people, including 19 Americans, are to face trial in Egypt for their work in promoting democracy. They include the son of U.S. Transportation Secretary Ray LaHood.

Sam LaHood was running the Cairo office of the International Republican Institute. The case against him and others has caused a furious reaction in Washington — with lawmakers threatening to hold up U.S. aid to Egypt.