Sen. Rand Paul meets with local Republicans in Hiawatha, Iowa. He's made three trips to the state this year. Charlie Neibergall/AP hide caption

Kenyan police confront university students protesting higher fees on May 20. The police have a reputation for corruption and violence and are not well-liked. But when a popular officer was arrested and charged with a vigilante-style killing, residents took to the streets to support him. Tom Maruko/Barcroft Media/Landov hide caption

Karen O's new debut album is called Crush Songs. Courtesy of the artist hide caption

Amir Pinkney-Jengkens, 8, is learning trombone through Harmony Project, a nonprofit that provides musical instruments and instruction to children in low-income communities. Recent research suggests that such musical education may help improve kids' ability to process speech. Annie Tritt for NPR hide caption

Theodore Roosevelt, seen here in 1885, was haunted by the fact that his father didn't fight in the Civil War. Library of Congress Prints and Photographs Division/PBS hide caption

Neonta Williams (left) shares family letters dating back to 1901 with preservationist Kimberly Peach during the Smithsonian's Save our African American Treasures program at the Birmingham Civil Rights Institute. Peach advises her to use archive-quality polyester sleeves to protect the fragile papers, rather than store them in a zip-lock bag. Debbie Elliott/NPR hide caption

Björk's interdisciplinary project Biophilia was released on the Nonesuch label in 2011. Nonesuch hide caption

Peat the kitten kept Scotland's Glenturret Distillery free of mice that are attracted to the grain used in production. The 6-month-old kitten was also an ambassador who was featured in public relations photos. But Peat died Monday, apparently after being hit by a car. Fraser Band/Volpa hide caption