The Chinese government started its "one-child policy" to slow down the country's population growth. The policy has created a demographic problem. By 2040, China will have 400-million senior citizens. Most will be without a pension, health insurance, or large numbers of children to care for them. The World's Mary Kay Magistad reports.

Our daily geography puzzler.

Today's answer is Vancouver, Canada where a historic man versus computer poker match is taking place today. Anchor Aaron Schachter gets details from Jonathan Schaeffer, director of the Computer Poker Research Group at The University of Alberta.

Dorian Merina takes us to New York City's Bangladeshi immigrant community where a new form of hip hop has emerged. The new music is popular not just with immigrants in New York, but with people back in Bangladesh as well.

Five Bulgarian nurses and a Palestinian doctor were released today from a Libyan jail. They had been found guilty of infecting hundreds of children with HIV. Reporter Matthew Brunwasser was at the airport in Sofia, Bulgaria, when the medics' plane touched down.

Anchor Aaron Schachter speaks with former Congressman and Iraq Study Group co-chair Lee Hamilton. Hamilton and several other foreign policy experts will issue a statement tomorrow urging presidential candidates to make diplomacy and development top priorities.

American and Iranian officials met today in Baghdad about the security situation in Iraq. Both sides blame each other for the continuing violence. The World's Jason Margolis reports.

Islam is on the rise among blacks in South Africa. The World's Patrick Cox tells us why.

South Korea officials met with Taliban kidnappers today to negotiate the release of 23 South Korean citizens who were abducted in Afghanistan last week. The abducted Koreans are members of an evangelical church. Correspondent Jason Strother reports that the episode has sparked a debate in South Korea about the role of its missionaries abroad.