Who Is Behind the Cuba Sonic Attack?

The New York Times returns to the Cuba sonic attack affair, with an extensive analysis of the leading hypothesis: microwaves.

In particular, a growing number of analysts cite an eerie phenomenon known as the Frey effect, named after Allan H. Frey, an American scientist. Long ago, he found that microwaves can trick the brain into perceiving what seem to be ordinary sounds.

The false sensations, the experts say, may account for a defining symptom of the diplomatic incidents — the perception of loud noises, including ringing, buzzing and grinding. Initially, experts cited those symptoms as evidence of stealthy attacks with sonic weapons.

The leading potential culprit is Russia working with Cubans in the government who do not want diplomatic thaw with the United States. This makes a lot of sense.

Unfortunately, the article does not do anything at all to discuss how that would work within Cuba. I assume such technology would be controlled by the Cuban military, which in turn is controlled by Raúl Castro. Could the Russians realistically import it into Cuba without anyone knowing? Could multiple attacks be staged over time under the nose of Cuba intelligence, famous for its competence? It seems too sophisticated to be kept secret from Raúl, who has no incentive that I can think of to approve. Or is his level of control lower than I think?

I would love to see a Cuba analyst add that part to the otherwise highly detailed article.