Admittedly this is the first I've heard of this but it strikes me as people trying to cash-in on the "Jesus' life and the mysteries that surround it" craze (Priory of Sion, Gospel of Judas etc.) that has sprung up since that damn DiVinci Code came out.
Of course, you leave out the part where we INVADED Cuba a year before the Cuban Missle Crisis. Hate to break it to you, but no matter how you try to spin it when it comes to Cuba, we don't look like the good guys at all. Who are the good guys in Cuba?