I came upon this news article and found it quite interesting. According to "The Atlantic" Fidel Castro said
The Cuban model does'nt even work for us any more.
That is quite obvious of course except for a few fantasists but hearing it from Fidel himself is surprising.
Fidel Castro questions ...
I don't know the source but at least it does not look like one of these nutter sites on first glance and it is in the news here too.