Daniela Chavarriaga holds her daughter Emma as Dr. Jose Rosa-Olivares administers a measles vaccination at Miami Children's Hospital. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

The rendering industry likes to call itself the world's oldest recycling system. Nearly 100 percent of processed pigs will eventually get used — as meat and in uses as varied as medicine and pet food. iStockphoto hide caption

itoggle caption iStockphoto

Then-incumbent Rep. Frank Guinta, R-N.H., and then-Democratic challenger Carol Shea-Porter debate during a Sept. 2012 forum at St. Anselm College in Manchester, N.H. Guinta, who lost to Shea-Porter in 2012, is running for his old seat in 2014. David Lane/AP hide caption

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Tom Worden works on a fixed-abrasive grinding table at Exelis Inc. in Rochester, N.Y. Exelis is an aerospace and defense company, and employs numerous former Kodak workers in its facility. Mike Bradley for NPR hide caption

itoggle caption Mike Bradley for NPR