The proportion of 12- to 19-year-olds who report having diabetes or "prediabetes" increased from 9 percent in 1999 to 23 percent in 2008, according to a paper published in the journal Pediatrics. "This report really sounds the alarm," says one researcher.

Not a lot is known about Kawasaki disease. It affects children under 4 and is more common in Asia, particularly Japan, but more than 4,000 American children contract it every year. One of its secrets may now be revealed, but it took climate researchers to help spot it.

When a bookmobile broke down last winter in rural Vermont, patrons, especially preschoolers, really missed it. Then a donor, who heard an NPR story about the rolling library's demise, came up with over $100,000 for a replacement. The town can't believe its good fortune. Vermont Public Radio's Charlotte Albright reports.

If life is a ballgame, then NPR's Mike Pesca is the guy in the stands, carrying his own stat-sheet and searching out empirical evidence. Host Rachel Martin speaks with Pesca about what the numbers have to say about injuries.

Out West Sunday, it will start getting dark earlier than normal, but just for a little while. A major solar eclipse, although not quite total, will spread across the skies in a 200-mile swath from Oregon into west Texas. Longtime Washington, D.C., meteorologist Bob Ryan has traveled the world chasing eclipses with his wife. He joins host Rachel Martin.

Host Rachel Martin takes a moment to remember William Henderson Foote, a black federal agent in Mississippi in the late 1800s. He was honored this week by the Bureau of Alcohol, Tobacco, Firearms and Explosives.

Last fall, President Abe Lincoln lost his sword. The copper blade went missing from atop Lincoln's burial site in Illinois. Authorities eventually recovered it, but in two pieces. Now, as Rachel Otwell reports, the artifact has been replaced.

The White House is urging war-weary NATO leaders to dig deeper into their pockets to share the commitment to get Afghanistan's forces to stand up on their own so U.S. and NATO forces can pull out in 2014. Host Rachel Martin speaks with Ben Rhodes, White House spokesperson on national security issues.

U.S. diplomats can breathe a little easier knowing Chen Guangcheng is in the U.S. and the weeks of difficult negotiations and high drama are behind them. Chen arrived Saturday with his wife and two children in New York, where he has a fellowship to study.

Chinese activist Chen Guangcheng, whose escape from house arrest sparked a diplomatic crisis between the U.S. and China, flew to the U.S. with his wife and two children. He reportedly will be studying law at New York University.

Facebook's culture and the nature of its business will inevitably change after it goes public. Its finances will be much more open to scrutiny. NPR's Steve Henn tells host Scott Simon that because founder and CEO Mark Zuckerberg owns so much of Facebook's stock, he will continue to have significant autonomy from Wall Street's demands.

Early investors like investment banks and venture capitalists already own shares of Facebook. Some are even starting to sell. Now small investors get their chance to buy with Friday's IPO. NPR's Sonari Glinton checks in with a few of them on the first day of trading.

Katie Beckett died Friday morning in the same hospital where she'd once made history. Beckett was 3 years old when her case changed health care law. She was 34 when she died. NPR's Joseph Shapiro explains why she was important to other children with disabilities.