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A newly discovered cache of internal documents reveals that the sugar industry downplayed the risks of sugar in the 1960s. Luis Ascui/Getty Images hide caption

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Luis Ascui/Getty Images

Gen. John F. Campbell, the top U.S. commander in Afghanistan, speaks during a ceremony in Kabul on Aug. 26. Campbell is overseeing the U.S. drawdown in the country after 13 years of war. Massoud Hossaini/AP hide caption

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Massoud Hossaini/AP

Afghanistan's Way Forward: A Talk With Gen. John Campbell, Decoded

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That water sounds so cold. iStockphoto hide caption

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iStockphoto

What Does Cold Sound Like? See If Your Ear Can Tell Temperature

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