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For more than a century, neurons have been the superstars of the brain. Their less glamorous partners, glial cells, can't send electric signals, and so they've been mostly ignored.

Update at 4:30 p.m. EST. Details Of Capture

Osama bin Laden's son-in-law and a former al-Qaida spokesman, Sulaiman Abu Ghaith, is in U.S. custody and is being held in a Manhattan jail. He could appear in a federal court as soon as Friday, U.S. officials familiar with the case say.

His capture is considered important not just because he was so close to bin Laden but also because U.S. officials have decided to try him in a federal court, not Guantanamo Bay.

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LYNN NEARY, HOST:

This is TALK OF THE NATION. I'm Lynn Neary, in Washington. Neal Conan is away. It's an American story as old as Horatio Alger: Hard work, determination and presto, you can change your station in life. But increasingly many Americans find themselves stuck where they are on the economic ladder, that American dream just out of reach.

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LYNN NEARY, HOST:

Yesterday, Republican Senator Rand Paul, of Kentucky, filibustered the Senate floor for nearly 13 hours in protest of the administration's use of drones.

SENATOR RAND PAUL: This is not about partisanship. I have allowed the president to pick his political appointees, but I will not sit quietly and let him shred the Constitution. I cannot sit at my desk quietly and let the president say that he will kill Americans on American soil who are not actively attacking a country.

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LYNN NEARY, HOST:

This is TALK OF THE NATION. I'm Lynn Neary in Washington. The Centers for Disease Control is warning of another deadly superbug. This one, known as CRE, ultimately left seven patients dead after an outbreak in 2011 at the National Institutes of Health in Bethesda, Maryland. CDC director Tom Frieden has called the bug a nightmare bacteria. It can resist even the strongest antibiotics.