Sign 's deactivation comes as relations between U.S. , Cuba improve . Electronic sign was installed on U.S. interests section 1 in Havana in 2013 . Calling the ticker an assault on Cuba 's sovereignty by an imperialist bully , an infuriated Fidel Castro marched 1 million Cubans past the interests section in protest , dug up the U.S. mission 's parking lot and blocked the ticker by erecting anti-U.S. billboards and 138 huge black flags to commemorate victims of so-called U.S. aggression . Sign ran quotes from American heroes , blasted Cuban government 's actions . Cuba erected billboards to block the sign ; billboards were taken down this time .
Sign 's deactivation comes as relations between U.S. , Cuba improve . Electronic sign was installed on U.S. interests section 1 in Havana in 2013 . Sign ran quotes from American heroes , blasted Cuban government 's actions . Cuba erected billboards to block the sign ; billboards were taken down this time .