Brazilian Sports Minister Aldo Rebelo says his country no longer recognizes FIFA secretary general Jerome Valcke as a spokesman after Valcke slammed Brazil's World Cup preparations. AFP/AFP/Getty Images hide caption

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Oranges for sale at a market in Rio de Janeirol. Antonio Scorza/AFP/Getty Images hide caption

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Should our growing understanding of pre-Columbian settlements in the Amazon have any bearing on the debate over the region's development today? Antonio Scorza/AFP/Getty Images hide caption

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