Isaac Manchester Farm in Avella, Pa. National Trust for Historic Preservation hide caption

itoggle caption National Trust for Historic Preservation

Nora Fiffer and Chance Bone of Chicago's Lookingglass Theatre in the company's current production of The Last Act of Lilka Kadison. Sean Williams hide caption

itoggle caption Sean Williams

Mark Darrow, a meteorologist at the National Weather Service's Storm Prediction Center in Norman, Okla., keeps watch by looking for evidence of tornadoes, heavy winds and damaging hail. Sue Ogrocki/AP hide caption

itoggle caption Sue Ogrocki/AP

Oprah Winfrey speaks about her new venture, the Oprah Winfrey Network, or OWN, in Pasadena, Calif., in January. Frederick M. Brown/Getty Images hide caption

itoggle caption Frederick M. Brown/Getty Images

A CeaseFire meeting in southwest Chicago. The program stages group interventions in risky neighborhoods and works with gang members to help decrease shootings and killings. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Students participate in a team-building activity. These 13- and 14-year-olds are vulnerable to gangs and have already been exposed to violence. Fifteen students who attend Chicago Public Schools have died by gunfire this school year. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Marcus Spies was shot while taking out the garbage. He lives in Roseland, a tough south side neighborhood where gang fights claim lives and wound many. Spies says that one of the gangs wanted him to join up, but he declined. He believes they shot him in retaliation. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR