Bronze medalist Arnu Fourie of South Africa (from left), gold medalist Jonnie Peacock of Great Britain, silver medalist Richard Browne of the United States and Oscar Pistorius of South Africa cross the line in the Men's 100m - T44 Final at London's Olympic Stadium. Jamie McDonald/Getty Images hide caption

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In a surprise finish, Brazil's Alan Fonteles Cardoso Oliveira (left) races past South Africa's Oscar Pistorius to win a gold medal in the 200-meter race at the 2012 London Paralympic Games. Emilio Morenatti/AP hide caption

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Tatyana McFadden has won medals at the Paralympic Games in 2004 and 2008. At this year's games in London, she's participating in every wheelchair race from the 100-meter sprint to the marathon. Courtesy of Deborah McFadden hide caption

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Stephen Strasburg of the Washington Nationals pitches against the Atlanta Braves at Nationals Park last week. Patrick McDermott/Getty Images hide caption

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Organ and tissue donation forms vary from state to state. Some are very general, while others allow people to choose or restrict what they want to donate. iStockphoto.com hide caption

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Unlike organs, tissue doesn't need to be transplanted immediately. Storage facilities like Tissue Banks International in San Rafael, Calif., process and store donated tissue for later use in medical products or as transplants. Noah Berger/AP hide caption

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Chris Truitt holds a photo of his daughter, Alyssa, who died when she was 2, at his home in De Forest Wis. After donating her organs and tissues, he decided on a career change that made him rethink tissue donation. Narayan Mahon for NPR hide caption

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Washington Nationals' Bryce Harper walks out of the clubhouse before an interleague baseball game in Baltimore. Patrick Semansky/AP hide caption

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Katie Beckett fits herself with a vibrating vest that helps clear mucous from her lungs. A nurse comes over to her apartment in Cedar Rapids to help her do this twice a day. On the wall to the right are pictures of Katie as a child with Ronald Reagan. This story starts twenty-nine years ago with an angry President Ronald Reagan. <> We just recently received word of a little girl who has spent most of her life in a hospital. <> The little girl in the hospital was three-year-old Katie Beckett. Because of a brain infection, she needed to be hooked to a ventilator at night to breathe. Her parents wanted her home. Her doctors said she'd be better off at home. And it'd be cheaper, too: Just one-sixth the cost. John Poole/NPR hide caption

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Shirley Ree Smith sits in the living room of her daughter's upstairs duplex in Alexandria, Minn. Smith is waiting to hear if California Gov. Jerry Brown will grant her clemency. "They say things happen for a reason. I'm not sure if I'll ever figure out a reason for all of this," she says. Courtney Perry for NPR hide caption

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Ernie Lopez hugs his daughter, Nikki Lopez, for the first time since 2009. Ernie was released from prison on March 2 in Amarillo, Texas, after nine years, while he awaits a new trial. Katie Hayes Luke/Katie Hayes Luke for NPR hide caption

itoggle caption Katie Hayes Luke/Katie Hayes Luke for NPR