TOPSHOT - Tourists ride on an old American car serving as a taxi in Havana, on May 6, 2019. - The activation of Chapter III of the Helms-Burton Act that seeks to intensify the US blockade against Cuba will particularly affect the self-employed sector by limiting the trips of Americans to the island. In April, US President Donald Trump ramped up pressure on Cuba with new restrictions on US travel and remittances and a green light to lawsuits over seized property as he vowed to rid Latin America of leftists. (Photo by Yamil LAGE / AFP)