Yahoo News – Venezuela’s Hugo Chavez, an avid tweeter whose speeches routinely go on for hours, has barely communicated in public since a June 10 operation in Cuba that has become increasingly shrouded in mystery and speculation as the days have gone by.

Usually on TV several times a day, Chavez has also been invisible except for a photo session with Cuba’s President Raul Castro and its revolutionary leader Fidel Castro, where Chavez was smiling and upright but notably frailer.

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