Venezuelan opposition protests again against Maduro

By Brian Ellsworth and Diego OréCARACAS (Reuters) - Venezuela's opposition renewed nationwide protests on Thursday to pressure the government of President Nicolas Maduro to hold elections and improve a collapsing economy, a day after three people were killed in similar demonstrations.Government officials dismiss the protests, characterized by street barricades and clashes with security forces, as violent and lawless efforts to overthrow Maduro's leftist government with the backing of ideo