Sean Morey, then with the Arizona Cardinals, celebrates after blocking a punt against the Seattle Seahawks in 2007. Morey, who suffers from post-concussion syndrome, retired from the NFL in 2010 on the advice of doctors. Stephen Dunn/Getty Images hide caption

itoggle caption Stephen Dunn/Getty Images

Roberto de Carvalho (left), who maintains a truck fleet in Recife, Brazil, is shown here with his daughter Sandra, 22, wife Enilda and daughter Susana, 16. The family makes just enough to belong the rapidly expanding ranks of the country's middle class, though they still can't afford a house or even a car. Melissa Block/NPR hide caption

itoggle caption Melissa Block/NPR

Microwave pralines are easier to make than stovetop pralines, and just as tasty. Ed Anderson/Chronicle Books hide caption

itoggle caption Ed Anderson/Chronicle Books

The new Moto X launched Thursday in New York City. Bryan Bedder/Getty Images hide caption

itoggle caption Bryan Bedder/Getty Images

Born in Texas and settled in Nashville, Tenn., Guy Clark has mentored generations of artists, including Rodney Crowell, Lyle Lovett and Steve Earle — all of whom cite his keen editing skills and prize his stamp of approval. Jim McGuire/Courtesy of the artist hide caption

itoggle caption Jim McGuire/Courtesy of the artist

ATF Special Agent Charles Houser runs the National Tracing Center in Martinsburg, W.Va. Melissa Block/NPR hide caption

itoggle caption Melissa Block/NPR

Gun enthusiast Paul Gwaltney at Blue Ridge Arsenal, in Chantilly, Va. Gwaltney, an NPR listener, agreed to host a discussion about guns with friends and colleagues. Becky Lettenberger/NPR hide caption

itoggle caption Becky Lettenberger/NPR

Led by the Rev. Willie Phillips (center), protesters march in February against violence in and around Club Majestic. Mike Haskey/Courtesy of The Ledger Enquirer hide caption

itoggle caption Mike Haskey/Courtesy of The Ledger Enquirer

Grapes, a spiky cluster of wooden stools from the Qing Dynasty (1644-1911), is part of Ai Weiwei's repurposed furniture series. Cathy Carver/Courtesy Hirshhorn Museum hide caption

itoggle caption Cathy Carver/Courtesy Hirshhorn Museum

Heidi Accola works a stand at the farmers market in Baraboo, Wis. She runs a 1-acre organic farm with her husband, but she says they don't talk politics at home because it gets too heated. Melissa Block/NPR hide caption

itoggle caption Melissa Block/NPR

Wisconsin Senate candidate Tammy Baldwin sits with state delegates during the Democratic National Convention in Charlotte, N.C., on Sept. 5. David Goldman/AP hide caption

itoggle caption David Goldman/AP