Anchor Marco Werman speaks with The World's Mary Kay Magistad in Beijing about China's reaction to the criticism of its role in Sudan.

Venezuela's President Hugo Chavez's largesse at home and throughout Latin America is well known. Now with Venezuela a leading lender in the region, institutions like the International Monetary Fund could be heading for trouble. The World's Ruxandra Guidi has more on the story.

We're looking for a gulf in the Baltic Sea.

Anchor Marco Werman speaks with Delphine Minoui, Tehran correspondent for the French newspaper "Le Figaro," about an aspect of the British hostage crisis that has some people perplexed - suits but no ties.

The Irish people have an affinity for the Easter season above and beyond the religious. It was on Easter, 1916, that they rebelled against the British, and they've been singing about the Irish rebellion ever since. Correspondent Av Harris of station WNPR in Hartford, Connecticut, caught up with an Irish folk group that has been singing about "The Troubles" for decades.

In today's Geo Quiz we were looking for a gulf bounded by the northern coast of Latvia and the western coast of Estonia. The answer is the Gulf of Riga.

A new report from the Intergovernmental Panel on Climate Change looks at the impacts of global warming. This podcast explores how climate change is affecting our world: from Africa, to South America, to Europe. And what global warming could mean in your neck of the woods.

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A range of wonderful stories this week. Let there be light in the hills of Mexico! Don't litter in England; Big Brother is watching. A radio station in a psychiatric ward in Argentina. Can they build an underwater tunnel from Africa to Europe? What about through the Alps? Like text messaging in Cambodia? Not so fast. And genetically modified crops that can make human insulin.

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The United States wants to Iran to shut down its uranium enrichment plant. But today Iran's president announced that the program has expanded...and he invited journalists and diplomats to tour the site. The BBC's Frances Harrison was there and tells anchor Marco Werman what she saw.

Iran's president today announced that his country is now capable of enriching nuclear fuel on an industrial scale. The announcement marked a significant expansion of a nuclear program that the United Nations has ordered Iran to shut down. The World's Jeb Sharp reports.