CARACAS (Reuters) – Venezuelan President Hugo Chavez flew home on Friday after cancer surgery in Cuba that will require him to have radiation therapy ahead of October’s re-election bid. Chavez’s presence on Venezuelan soil after an absence of more than three weeks in Havana should reassert his leadership, calm anxiety among supporters and quell whispers of a brewing succession struggle behind the scenes. Yet little is known about what kind of cancer Chavez has or how serious it is. …

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