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Iran's influence 'waning' in Latin America: US general

General John Kelly, head of US Southern Command, is pictured in Guatemala City on Febrary 21, 2013. Iran is "struggling" to cultivate ties with Latin American countries that are wary of the United States, and Tehran's influence in the region is on the decIran is "struggling" to cultivate ties with Latin American countries that are wary of the United States, and Tehran's influence in the region is on the decline, a top US general said Tuesday.