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People walk under the portraits of Ayatollah Khamenei and Khomeini in the annual International Book Fair in Tehran, 2nd May 2012. (Photo by Kaveh Kazemi/Getty Images)

People walk under the portraits of Ayatollah Khamenei and Khomeini in the annual International Book Fair in Tehran, 2nd May 2012. (Photo by Kaveh Kazemi/Getty Images)