Sign 's deactivation comes as relations between U.S. , Cuba improve . Electronic sign was put on U.S. interests section building in Havana in 2006 . The scrolling electronic sign , fitted across 25 windows of the U.S. interests section , ran quotes from American heroes , such as Martin Luther King 's `` I have a dream that one day this nation will rise up , '' and Abraham Lincoln 's `` No man is good enough to govern another man without that other 's consent . '' Comment: Cuba erected billboards to block the sign ; billboards were taken down this year .
Sign 's deactivation comes as relations between U.S. , Cuba improve . Electronic sign was put on U.S. interests section building in Havana in 2006 . Comment: Cuba erected billboards to block the sign ; billboards were taken down this year .