Talk of the Nation

In recent years, critics have questioned the need for a U.S.-European alliance, originally formed to confront the Soviet Union. Former Secretary of State Madeleine Albright argues the president and NATO leaders must reaffirm the importance of their union to U.S. security.

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NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan, in Washington. Only a little over half of fulltime students graduate with a bachelor's degree within six years of starting college. Educators blame the low rate on students who decide to adjust their course loads, take time off or drop out of school altogether.

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NEAL CONAN, HOST:

Advertising executives gathered in New York City last week to get their first look at the fall primetime television lineup. The four big networks announced decisions to cancel some shows, including stalwarts like "CSI: Miami" and "Desperate Housewives." And they also welcomed newcomers, including lots and lots of new comedies. But this is all happening against the backdrop of a dwindling audience. It used to be that the network's losses were cable televisions gain, but cable ratings are also down.

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IRA FLATOW, HOST:

(Unintelligible) at the beginning of the program about Cathy Hutchinson having not being able to drink anything without the help of caregivers for 15 years. She was paralyzed from the neck down. But she's very famous, very famous this week, because thanks to new technology described in the journal Nature, she took a very famous sip of coffee this week. You probably saw it on television or the Internet.

On May 20th, skywatchers in the western third of the United States will be treated to an annular solar eclipse, a sight not seen here in 18 years. Dean Regas of the Cincinnati Observatory shares tips for viewing the eclipse, and tells how solar observers can safely get a peek at the elusive 'ring of fire.'

Studies show that the power of suggestion can induce itchiness — but scientists don't know what this irritation is, what causes it, or why it feels so good to cure. Marc Abrahams, editor of the Annals of Improbable Research, talks about how talking about the science of itches might have you scratching right now.

A paralyzed man with a spinal cord injury to the C7 vertebrae is able to move his fingers again. Surgeons at Washington University School of Medicine rerouted working nerves in the patient's upper arms to restore some hand function. Dr. Ida Fox discusses the procedure described in the Journal of Neurosurgery.

SpaceX is set to launch its Dragon spacecraft to rendezvous with the International Space Station this weekend. If successful, it will be the first commercially developed, launched and operated craft to meet the ISS. SpaceX head Elon Musk talks about the launch, and his other project, Tesla Motors.

From rooftop apiaries in Paris to a vegetable-and-chicken farm in Philadelphia, agriculture has come to the city. Urban farmer Mary Seton Corboy and food writer Jennifer Cockrall-King talk about the future of food in the city. Plus, Tama Matsuoka Wong gives tasty tips for eating garden weeds.

Facebook hopes to raise more than $100 billion in its initial public stock offering. In a piece at Slate.com, tech columnist Farhad Manjoo warns that Facebook users can expect to see changes, including lots more ads. But he warns the company must balance profit seeking with the desires of users.