Today, Pres. Marco Rubio signed a treaty with Cuban Pres. Raul Castro conferring dual citizenship on Mormons. This was in exchange for Mitt Romney's endorsement during Rubio's campaign.
Romney lamented the fact that Mormons feel out of place in the 21C. They are caught in an Eisenhower era timewarp. Just look at the average Mormon missionary.
Since Cuba is like trapped in the 1950s, Mormons feel right at home there. For Mormon retirees, it's the next best thing to heaven this side of planet Kolob.