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In this photo taken Sept. 14, 2009, the Quiulacocha lagoon is filled with tailings, the chemical and mineral sludge left over from processing ore, on the outskirts of Cerro de Pasco, Peru. As the government continues its aggressive push to extract the country's vast mineral and oil reserves, communities such as Cerro de Pasco show the conflict Peru faces between environmental contamination and jobs that is fueling violent protests, some deadly, from the Andes to the Amazon. (AP Photo/Martin Mejia)