Melissa Block As special correspondent, Melissa Block produces richly reported profiles of figures at the forefront of thought and culture, as well as stories and series on the critical issues of our day. In addition, she is a guest host on NPR news programs.

Soldiers participate in physical therapy while using a prosthetic brace called the Intrepid Dynamic Exoskeletal Orthosis (IDEO), which allows them to use and strengthen severely injured legs. John Moore/Getty Images hide caption

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Orthotic Brace Takes Soldiers From Limping To Leaping

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Tell Your Bestie: The OED Has New Words

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To Sell Health Care To Young People, Obama Steps 'Between Two Ferns'

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Fake Chef, Real Recipes — And The Food's Disgusting

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Putin Speaks, Decries U.S. For 'Experimenting On Rats' In Ukraine

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Letters: Genetic Experiments And Hopes For Saving Voices

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After Days Of Deliberation, Controversial Ariz. Bill Is Vetoed

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More Findings, More Questions About Value Of Mammograms

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4 Million Forgotten Songs Might Finally Find Ears

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Sean Morey, then with the Arizona Cardinals, celebrates after blocking a punt against the Seattle Seahawks in 2007. Morey, who suffers from post-concussion syndrome, retired from the NFL in 2010 on the advice of doctors. Stephen Dunn/Getty Images hide caption

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Sidelined By Brain Injury, Ex-NFL Player Copes With 'Desperation'

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Surprise Invitation Lands Syrian Peace Talks In Hot Water

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Robert Siegel On Qatar: Tiny Country, Big Influence

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Snowden's Document Leaks Shocked The NSA, And More May Be On The Way

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