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Tunisian artist Nadia Jelassi with two of the sculptures from her exhibit that were attacked by a hard-line Muslim group. Secular Tunisians and Islamists have clashed over multiple issues related to freedom of expression. Eleanor Beardsley /NPR hide caption

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Eleanor Beardsley /NPR
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Friday

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Since leaving Fox News in 2011, Glenn Beck has found his way back to TV. His Internet television network, The Blaze TV, is now available to subscribers of the Dish Network. Kris Connor/Getty Images for Dish Network hide caption

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Kris Connor/Getty Images for Dish Network
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Thursday

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A Libyan follower of Ansar al-Sharia Brigades carries a placard reads in Arabic "our Islamic holies are red line," during a protest in front of the Tibesti Hotel, in Benghazi, Libya, on Sept. 14, as part of widespread anger across the Muslim world about a film ridiculing Islam's Prophet Muhammad. Mohammad Hannon/AP hide caption

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Mohammad Hannon/AP

Abdul Qadeer Khan, regarded as the father of Pakistan's nuclear bomb, shakes hands with supporters at the Rawalpindi High Court in 2010. The controversial Khan, who sold nuclear secrets to Iran and North Korea, is now entering politics. Behrouz Mehri/AFP/Getty Images hide caption

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Behrouz Mehri/AFP/Getty Images
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Wednesday

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An incentive system that gave bonuses to teachers upfront, with the threat of having to give the money back if student performance didn't improve, proved effective in one study. David Franklin/iStockphoto.com hide caption

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David Franklin/iStockphoto.com
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