Venezuelan National Guard armoured cars charge on a makeshift barricade set up by demonstrators during an opposition march against Venezuelan President Nicolas Maduro, in Caracas on April 19, 2017. Venezuelans took to the streets Wednesday for massive demonstrations for and against President Nicolas Maduro, whose push to tighten his grip on power has triggered deadly unrest that has escalated the country's political and economic crisis. / AFP PHOTO / FEDERICO PARRA (Photo credit should read FEDERICO PARRA/AFP/Getty Images)
