And there is increasing indirect American investment in the island: many of the multinationals from Europe and Canada that have set up operations in Cuba since Mr Castro's opening to foreign investment a decade ago count American institutions among their shareholders.
Yet none of the latter has led to prosecutions in the last decade (unless you count repeat offender Harold Nicholson, whose original 1997 sentence was extended eight years when he tried to resume spying by tasking his own son from his jail cell).
Because the market was so high about a decade ago--dividend yields got down to about 1% and PE got up to almost 40 times--as I say in my book and as I said in the speech I gave at Princeton called "Don't Count On It, " if you think the stock market is going to give a positive return in the next decade, don't count on it.