Vermont Sen. Bernie Sanders, an independent, speaks during a December 2012 news conference on Capitol Hill. Sanders said recently he'd consider running for president if no other progressive candidate steps up. Jacquelyn Martin/AP hide caption

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This photo taken on Nov. 9 and released on Nov. 30 by North Korea's official Korean Central News Agency shows American Merrill Newman inking his thumbprint onto a written apology for his alleged crimes both as a tourist and during his participation in the Korean War. KCNA/AFP/Getty Images hide caption

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How to make dead fish look attractive? That's the challenge New York-based duo Shimon and Tammar Rothstein faced when they were hired to do the photography for famed French chef Eric Ripert's book On the Line. Photos by Shimon and Tammar, Courtesy of Shimon and Tammar hide caption

itoggle caption Photos by Shimon and Tammar, Courtesy of Shimon and Tammar

Physics professor Chad Orzel gives a TED talk in New York. In science, he says, public speaking is an important part of making a reputation. Ryan Lash/Flickr hide caption

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Chuck Shelton in the cold room at Albemarle CiderWorks in Virginia, which makes sparkling alcoholic cider with some of the same apple varieties used by Thomas Jefferson. Meredith Rizzo/NPR hide caption

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