I have to comment on the last restriction:
"FULLY HOSTED" TRAVEL: Now barred. That category previously let U.S. citizens visit if they could prove they did not spend any money while in Cuba.
Is this the most ridiculous statement? How would you be able not to spend money in Cuba, if you're there visiting? Like my sister-in-law, Sandra, kindly put it, "Hechandote fresco." Now if anyone would happen to know how to go to Cuba and not spend any money, let me in on this secret.