So, here is a kind of postscript.
One of the program’s researchers, Gina Garcia, has kindly shared her impressions of the visit with readers of the official Today blog.
It seems Ms Garcia (no relation) had a terrific time in Fidel Castro’s island paradise, enjoying the food, the music, the old cars cruising along the Malecon, the crumbling colonial architecture …
She even bumped into a group of American medical students studying in Cuba, all of whom refuted any suggestion they were being used as propaganda tools by the Castro regime. No, siree.
But here is the comment that gives the game away.
Referring to her task of “sourcing” stories for the program, Ms Garcia writes: “Everywhere we went … a government official came along.”