As the death toll from a raging wildfire in Chile continues to rise, someone appears to be lighting retaliation fires.

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The tariff rise makes it harder for Chile to move from its present associate status to full membership of Mercosur.

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The region has also seen the rise of a group of countries that includes Mexico, Peru, Chile and Colombia that all have free-trade deals with the U.S. and Europe.

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Other Latin American countries can offer no solution: Venezuela, Chile and Mexico are also struggling to attract investment in power generation and transmission without a politically explosive rise in tariffs.

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