For much of the last week the world’s media have focussed on the outcome of Cuba’s Sixth Communist Party Congress which took place in Havana from April 16 to 19. Most of their coverage focussed on the time limits that will now be placed on the leadership’s period in office, the right in future of Cubans to buy and sell houses and cars, and the election of a smaller but not much younger politburo.

Irrespective of this, far more important and …..