Government Prepares For Visit By U.S. President Barack Obama [Getty Images]

Men sit next to a poster of U.S. President Barack Obama and Cuban President Raul Castro in Old Havana, Cuba, on Friday, March 18, 2016. Obama, the first sitting president to step on Cuban soil in more than eight decades, will arrive in Cuba on March 20. Photographer: Eliana Aponte/Bloomberg via Getty Images

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