A couple sits in front of a mural depicting Venezuela’s President Hugo Chavez, Cuba’s former leader Fidel Castro and Nicaragua’s President Daniel Ortega in Managua

A couple sits in front of a mural depicting Venezuela’s President Hugo Chavez (C), Cuba’s former leader Fidel Castro (R) and Nicaragua’s President Daniel Ortega (L) in Managua January 3, 2013. Venezuela’s opposition on Wednesday demanded the government tell “the whole truth” about the health of cancer-stricken Chavez, who has not been heard from in three weeks after undergoing a grueling operation in Cuba. REUTERS/Oswaldo Rivas (NICARAGUA – Tags: POLITICS HEALTH)