In Venezuela daily protests against President Maduro's government have resulted in scores of deaths. Inflation, malnutrition and even starvation are on the rise. The BBC has spoken to activists who say the government is using torture, and imprisonment without trial, against those who oppose it, a claim the government denies. This weekend massive protests are expected against a vote to elect an assembly to change the constitution, which opposition parties say could create a dictatorship. So who are the people hoping to overthrow President Maduro? For Our World, Vladimir Hernandez reports from Caracas. Show less