New strains are emerging between China and its old ally, North Korea, six months after the death of reclusive North Korean leader Kim Jong Il. The recent North Korean hijacking of Chinese fishing boats has shaken those ties considerably, leading to public pressure on China to stand up to North Korea.

Fishing boats returning to their home port in China don't normally make the news. But they did last month, because three boats — and 28 fishermen — had been detained for almost two weeks in North Korea.

Enter the glorious Rose Reading Room on the third floor of the New York Public Library on a weekday afternoon, and you'll find almost every chair filled.

Scholars and researchers still submit their book requests on slips of paper and wait for their numbers to appear on two large boards.

The stacks, filled with some 3 million volumes, are closed to the public, so books are retrieved from seven floors of shelving below. Still other volumes are stored off-site.

NPR Morning Edition host Steve Inskeep is taking a Revolutionary Road Trip across North Africa to see how the countries that staged revolutions last year are remaking themselves. Steve and his team are traveling some 2,000 miles from Tunisia's ancient city of Carthage, across the deserts of Libya and on to Egypt's megacity of Cairo. Near the Libyan coastal city of Misrata, he looks at violence that took place after the revolution.

When Dr. Barbara Natterson-Horowitz was asked to treat an exotic little monkey with heart failure at the Los Angeles Zoo, she learned that monkeys can suffer heart attacks from extreme stress — just like humans. That's when the cardiologist realized she'd never thought to look beyond her own species for insights into disease.

More Americans fish than play golf and tennis combined and the state of Florida is ranked number one in total expenditures by anglers.