A sockeye salmon that was caught from the research vessel Miss Delta off the coast of Vancouver is examined. The MSC has certified the fish as "sustainable" even though there is concern from scientists and environmentalists. Brett Beadle for NPR hide caption

itoggle caption Brett Beadle for NPR

Dennis Roseman, left, and Jamie Manganello pull in a swordfish off the coast of Florida. The Day Boat Seafood company went through a complicated process to become certified as a sustainable fishery by the Marine Stewardship Council. Chip Litherland for NPR hide caption

itoggle caption Chip Litherland for NPR

Capt. Art Gaeten holds a blue shark that was caught during a research trip in Nova Scotia. Scientists are studying the impact of swordfish fishing methods on the shark population. Dean Casavechia for NPR hide caption

itoggle caption Dean Casavechia for NPR

Derrin Yellow Robe, 3, stands in his great-grandparents' backyard on the Crow Creek Reservation in South Dakota. He was taken off the reservation by South Dakota's Department of Social Services in July 2009 and spent a year and a half in foster care before being returned to his family. John Poole/NPR hide caption

itoggle caption John Poole/NPR

Mine helmets and painted crosses were placed at the entrance to Massey Energy's Upper Big Branch coal mine as a memorial to the 29 miners killed there. Jeff Gentner/AP hide caption

itoggle caption Jeff Gentner/AP

Zach Sayne at age 5, with his mother Nola. Courtesy of Nola Sayne hide caption

itoggle caption Courtesy of Nola Sayne

Ernie Lopez hugs his daughter, Nikki Lopez. He was released from prison on March 2, 2012, in Amarillo, Texas, after serving nine years. Katie Hayes Luke for NPR hide caption

itoggle caption Katie Hayes Luke for NPR

Jennie and Kristian Aspelin pose in a pumpkin patch with their children two weeks before three-month-old Johan died. Courtesy of the Aspelin family hide caption

itoggle caption Courtesy of the Aspelin family

Mine helmets and painted crosses at the entrance to Massey Energy's Upper Big Branch coal mine, as a memorial to the 29 miners killed there. Jeff Gentner/AP hide caption

itoggle caption Jeff Gentner/AP

Simon Cho competes in the men's 500-meter finals at the 2011 ISU World Cup short track speedskating final in Dresden, Germany. He won the event. Robert Michael/AFP/Getty Images hide caption

itoggle caption Robert Michael/AFP/Getty Images

Retired Army Major Michelle Dyarman holds the Purple Heart medal she was awarded after suffering a severe concussion from an IED in Baghdad in 2005. Robb Hill for NPR hide caption

itoggle caption Robb Hill for NPR

John Walker Lindh was captured in Afghanistan in 2002 after fighting with the Taliban. File Photo/AP hide caption

itoggle caption File Photo/AP