The Egyptian army deploys outside the presidential palace in Cairo on December 13, 2012. A divided Egypt is being called to vote in a referendum Saturday on a new constitution that the secular

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The Egyptian army deploys outside the presidential palace in Cairo on December 13, 2012. A divided Egypt is being called to vote in a referendum Saturday on a new constitution that the secular opposition fears will be used by President Mohamed Morsi and his Muslim Brotherhood to usher in an Islamist interpretation of laws.

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