Rebecca Henschke reports on the Cambodia's real estate boom -- and its effect of slum dwellers. They are often forced out of their homes to make way for new developments. That's led to protests from human rights groups.

Zimbabwe's top opposition figure is detained by police. A leading Zimbabwean human rights lawyer tells anchor Lisa Mullins that scores of ordinary citizens are being arrested and beaten every day, as part of a government crackdown.

It's only been one week since South Korea lifted a five year long ban on American beef, but Seoul is already calling for imports to be restricted again. Protesters have put pressure on President Lee Myung Bak. They say he's exposing the nation to mad cow disease by allowing the import of US beef. Correspondent Jason Strother has the story.

Presumptive Democratic nominee for president, Barack Obama, has called for direct diplomacy with friend and foe alike. Among the foes of the Bush administration is Hugo Chavez, President of Venezuela. Anchor Lisa Mullins speaks with Michael Shifter, director of the program on Inter-American Dialog at Georgetown University, about how to approach Chavez.

One of the big foreign policy questions raised during this presidential campaign has been whether or not to open a dialogue with Iran. Host Lisa Mullins speaks with Edward Djerejian, the founding Director of Rice University's Baker Institute for Public Policy and a former U-S ambassador to Israel and Syria.

As the now presumptive Democratic nominee, Barack Obama took his turn speaking at the pro-Israel AIPAC conference today. He called for "aggressive, principled diplomacy" in dealing with the threat from Iran. The World's Matthew Bell reports.

Today on the World: Barack Obama launches into the fall campaign with a call for "aggressive, principled diplomacy" in dealing with Iran; The music of American-Iranian composer, Jamshied Sharifi.

Reporter Meribeth Deen has a profile of the Turkish band Orient Expressions. The Istanbul band blends electronica, jazz and Turkish traditional folk music.

For our Geo Quiz, we were looking for the name of the capital of Ukraine. The answer is Kiev. The BBC's Gabriel Gatehouse reports on a controversy a local TV show that asked viewers to name the greatest Ukrainian of all time.