My opinion: recent international politic choices of pdt Dilma might suggest that Brazil did not get good output with some (hypothetical) north american negociation about energy delivery, therefore Brazil is looking for some other neighbors to close some more interesting deals (Venezuela? Cuba?). I'd say that is the current line of decision pdt Dilma is opting for. Therefore the cuban deal with BNDES, the latest and rather unexpected support on Maduro's political (and rather hectic) decisions.
