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For the first time in decades, a non-Peronist president will peacefully hand over power. But the new president\u2014and his deputy, former president Cristina Fernandez de Kirchner\u2014have their work cut out for them. There\u2019s a resurgence in radical-left ideas brewing; our correspondent picks through the manifestos. And an American mega-mall attempts to beat the rise of e-commerce with thrills.

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