Sgt. Barbara Johnson and Corrections Lt. Robbin Preston run the Tuba City Juvenile Detention Center on the Navajo Nation. Laurel Morales/NPR hide caption

itoggle caption Laurel Morales/NPR

On Wednesday, Hamilton County prosecutor Joe Deters announced murder and manslaughter charges against University of Cincinnati police Officer Ray Tensing for the traffic stop shooting death of motorist Samuel DuBose. During the press conference, Deters said that "being police officers shouldn't be the role of this university." John Minchillo/AP hide caption

itoggle caption John Minchillo/AP

High school students in the Johns Hopkins University summer program, Engineering Innovation, compete in an annual spaghetti bridge-building competition. Above: The A'hunna Key-Lows push their bridge to the limit. Below: The Key-Lows' winning bridge shatters — but only after holding 53 pounds. Lydia Thompson/NPR hide caption

itoggle caption Lydia Thompson/NPR

3-D renderings of four skeletons found buried near the altar of an early church in the Jamestown settlement in Virginia. Smithsonian X 3D hide caption

itoggle caption Smithsonian X 3D

A cell at New York's Rikers Island jail. About 1,000 people die in American jails every year, and about a third of those are suicides. Seth Wenig/AP hide caption

itoggle caption Seth Wenig/AP

Wall graffiti at Facebook headquarters in Menlo Park, Calif. The company released a diversity report last month showing that 70 percent of employees are male; African-Americans comprise 2 percent of it workforce. Robyn Beck/AFP/Getty Images hide caption

itoggle caption Robyn Beck/AFP/Getty Images
Diana Davies/Courtesy of the Ralph Rinzler Folklife Archives and Collections, Smithsonian Institution

At the State Department conference for people with disabilities, adviser Judy Heumann (center) is surrounded by admirers from around the world. Joseph Shapiro/NPR hide caption

itoggle caption Joseph Shapiro/NPR

After a long day, Emeka arrives home to the apartment in South Tulsa that he shares with his father. Kenneth M. Ruggiano for NPR hide caption

itoggle caption Kenneth M. Ruggiano for NPR

The hard part of making an egg replacement product is coming up with a substitute for the protein in egg whites. Wilson Hui/Flickr hide caption

itoggle caption Wilson Hui/Flickr

American tourists, like these visitors taking a guided tour in May, still have to provide one of 12 authorized reasons — such as visiting family or engaging in humanitarian work — for travel to Cuba. Desmond Boylan/AP hide caption

itoggle caption Desmond Boylan/AP

Steve Heller has worked for Minnesota's John Henry Foster company for 15 years. He says he likes the greater choice of health plans he now has because of the private exchange. Mark Zdechlik/MPR hide caption

itoggle caption Mark Zdechlik/MPR

The search for quality day care is getting increasingly difficult as small, independent operations are closing. Marc Romanelli/Getty Images hide caption

itoggle caption Marc Romanelli/Getty Images

Scientists have documented that beneficial microorganisms play a critical role in how our bodies function. And it's becoming clear that the influence goes beyond the gut — researchers are turning their attention to our emotional health. iStockphoto hide caption

itoggle caption iStockphoto
Adolfo Valle for NPR

Harper Lee's friend Michael Brown took this picture of the author in October 1957, the same month she signed with publisher J.B. Lippincott. Michael Brown/Courtesy of Columbia University hide caption

itoggle caption Michael Brown/Courtesy of Columbia University

A bumblebee collects pollen from a flower. New evidence suggests climate change has left bumblebees with a shrinking range of places to live. Yuri Kadobnovy/AFP/Getty Images hide caption

itoggle caption Yuri Kadobnovy/AFP/Getty Images
Roy Scott/Ikon Images/Corbis

Motorcycle gang-related gunfire killed nine people at the Twin Peaks restaurant in Waco, Texas, on May 17. More than 170 people were arrested on charges of "engaging in organized criminal activity." Jerry Larson/AP hide caption

itoggle caption Jerry Larson/AP

Jonathan Treviño poses in front of a drug bust. Courtesy of Jonathan Treviño hide caption

itoggle caption Courtesy of Jonathan Treviño

Kohlrabi, peeled and sliced, is refreshing, but lightly poached is good too, says chef April Bloomfield. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Fireworks light up the sky above the Brooklyn Bridge during Macy's 4th of July Fireworks Spectacular in 2014. Mark Lennihan/AP hide caption

itoggle caption Mark Lennihan/AP

Cruz in his high school yearbook; he was president of the drama club. Second Baptist High School hide caption

itoggle caption Second Baptist High School

Raymond Smith of Charleston, S.C., kneels in prayer in front of the Emanuel AME Church in Charleston before a worship service on June 21. Stephen B. Morton/AP hide caption

itoggle caption Stephen B. Morton/AP

Metropolitan Division officers finish another "rollback" operation. They searched the apartment of a paroled armed robber and gang member. These rollbacks are a cornerstone of the Metro Division's strategy of tracking people who may re-offend, and suppressing crime before it happens. Martin Kaste/NPR hide caption

itoggle caption Martin Kaste/NPR