Some U.S. and Canadian diplomats who were in Havana between 2016 and 2018 are still not fully recovered from ailments they suffered

▲ Building of the U.S. Embassy in Cuba [department de Estado].

ANALYSIS / Eduardo Villa Corta

Three years ago, staff U.S. diplomats stationed in Cuba began to feel physical discomfort supposedly caused by strange sounds to which they had apparently been exposed; Washington spoke of a "sonic attack. However, although the symptoms suffered by those affected have been determined to be anomalous, it has not been possible to establish what caused them. Was it really an attack? Who was behind it? We review here the main hypotheses and conjectures that have been made, and point out their weaknesses.

In late 2016 and early 2017, several U.S. diplomats stationed in Havana, as well as members of their families, reported suffering from dizziness, vertigo and sharp pains in their ears that could be caused by strange sounds to which they had been exposed. According to their testimonies, the sounds came from a specific direction, and they had heard them in their own residences or, in some cases, in hotel rooms, while people staying in neighboring houses or adjoining rooms had not heard any special sounds. The phenomenon also affected Canadian diplomats in the Cuban capital. In all, some forty people were treated for these symptoms.

Acoustic attack

Echoing the facts reported by its staff in Cuba, in mid-2017 the U.S. State department stated that the symptoms could have been caused by a sonic attack by the Cuban government directed against diplomats and their families. In October 2017, President Donald Trump directly accused Havana: "I believe Cuba is manager; yes, I do."

At the beginning of 2018 the department of State issued a statement alert not to travel to Cuba due to a possible health crisis and withdrew a good part of the staff of the mission statement diplomatic in Havana, reducing the activity of this to the minimum possible. At that time, a total of 24 Americans had been affected.

At the time, the Canadian government also indicated that its diplomats had experienced similar discomfort. Ottawa decided to evacuate the families of its employees in Cuba and in early 2019 proceeded to reduce the staff of the embassy in the face of what appeared to be the appearance of a fourteenth case.

The Cuban government denied from the outset being involved in any harassment operation against the U.S. or Canada. ˝There is no test about the cause of the reported ailments, nor is there any evidence to suggest that these health problems have been caused by an attack of any kind˝, Havana assured. Raul Castro's government offered its cooperation in the research of the facts, with nothing coming to light that could explain the case. No devices that could have provoked the sounds appeared.

Adding confusion to the status, at least two US diplomats stationed in China, busy at the consulate general in Guangzhou, the largest that the US has in the country, presented in early 2018 also the symptoms already described. Washington evacuated them and issued a health warning about missions in mainland China.

The Associated Press published in October 2017 a recording of the alleged sounds causing the reported ailment, and indicated that government agencies had been unable to determine the nature of the noise and explain its relationship to the bodily disorders caused. Months later, he noted that internal FBI reports did not even establish that there had been an "attack". Other media highlighted the poor cooperation in the research, due to jurisdictional zeal, between the department of State, the FBI and the CIA.

Symptoms of "Havana syndrome".

A medical team from the University of Pennsylvania, at the request of the U.S. Government, examined 21 people affected by what the press began to call "Havana syndrome". The research, initially published in March 2018 in the Journal of the American Medical Association (JAMA), indicated that most of the patients reported problems with report, concentration, and balance, and determined that they appeared to have suffered injuries to extensive brain networks.

data Further MRI scans of the same team extended to 40 patients, released in July 2019, led to the conclusion that the diplomats had experienced some craniocerebral trauma. The results of the MRI scans, compared with those of a group of healthy people, showed differences in the volume of the white and gray substances of the brain, in the integrity of the cerebellar microstructures and in the functional connectivity of the subnetworks for hearing and spatial vision, but not for executive functions.

This report concluded that the staff diplomat had been physically injured, although it could not determine the cause. He also noted that patients do not experience a usual recovery, as they are not recovering quickly from symptoms, as is the case in other cases of similar "concussions" or ear problems.

IF IT WASN'T AN ATTACK, WHAT WAS IT?

As no clear cause has been established as to what caused the ailments suffered by the US and Canadian diplomatic staff and some members of their families, the very reality of an attack has been called into question. Although various alternative explanations have been put forward, none of them are fully convincing.

1) Collective hysteria

Formulation. Some neurologists and sociologists, such as Robert Bartholomew, have suggested that it could be a case of mass hysteria. Given the pressure to which some of the diplomats working in very unfriendly environments are subjected, and the endogamic relationship in which they live, living almost exclusively among themselves, it could explain a mutual conviction of an external attack that even has somatic consequences.

Weak spot. Both the research of the University of Pennsylvania and the doctor of the department of State, Charles Rosenfarb, who appeared before the committee of Foreign Relations of the Senate, came to rule out that the symptoms suffered by the diplomats were due to a mere mental mechanism. It is very difficult that about sixty people, including Americans and Canadians, convinced each other of an aggression of this kind subject and then almost all of them developed the same brain lesions.

2) Microwave

Formulation. The researcher team at the University of Pennsylvania, while not pointing to any possible cause of the ailments, did not rule out certain assumptions, such as that of microwave affectation. This aspect was insisted upon by a research published in 2018 in the journal Neural Computation, which considered the symptoms consistent with exhibition to electromagnetic microwave (RF/MW) radiation.

Weak point. Not all the symptoms shown by patients could be a consequence of the exhibition of such a radiation subject, which also has a diverging literature on its effects on the human body. In addition, there is no known microwave weapon that can affect the brain.

3) Ultrasound

Formulation. A team of computer experts at the University of Michigan suggested in 2018 that it could be a case of exhibition to some subject ultrasound, perhaps coming from malfunctioning listening equipment mixing multiple ultrasonic signals.

Weak point. The recording of one of the sound episodes - the sample broadcast by AP - is not sufficient to be able to determine its nature. It is also possible that the sound was somewhat different in other cases.

4) Crickets

Formulation. A research from the Universities of California-Berkeley and Lincoln, from the existing sound sample , considered in January 2019 that the possible cause of the attacks was made by cricketsThe study, specifically crickets Anurogryllus muticus. The research was a comparative study between the sound emitted by that variant of crickets and the sample of one of the Havana acoustic episodes.

Weak point. The sound perceived by the diplomats was directional, so it was not heard by neighboring people. If they had been crickets in their natural environment, the sound would have spread around.

5) Neurotoxins

Formulation. A joint study by two Canadian research centers in May 2019 attributed the symptoms suffered by diplomats to exhibition to neurotoxins from pesticides used to spray mosquitoes, a internship common occurrence in embassy buildings.

Weak point. The diplomats affected related the beginning of their physical discomfort to situations experienced in their own residences or in hotel rooms, where there was no fumigation.

IF IT WAS AN ATTACK, WHO DID IT?

Given that the previous explanations do not seem entirely solid, the US Government maintains the hypothesis of an attack. If it really happened, who was behind it? Here, too, there are various conjectures.

1) Castro regime

The first option considered, assumed in principle by the US given the public accusations made from Washington, has been to attribute the alleged attacks to the Cuban regime itself. With them, Havana would try to maintain pressure on the Americans, in spite of the formal reestablishment of diplomatic relations, with the goal to mark each other's territory.

Weak point. The incidents began to occur during the Obama Administration, in a context of a ˝honeymoon˝ marked by the reopening of embassies and the visit of Barack Obama to Havana. The normal thing is that at the end of 2016, in view of the U.S. elections, the Castro regime would not want to give reasons to the next U.S. president to twist the diplomatic line opened by Obama. It could make sense that after Donald Tump's later revocation of the previous openness measures, Cuba would want to punish the new Administration, but not before seeing the direction it would take; in any case, the attacks would only justify the hard line followed by Trump, which does not benefit the island.

2) A sector of Castroism

Fidel Castro was attributed with an unaccommodating attitude towards his brother Raul's decision to reestablish diplomatic relations with the United States. Although he died in November 2016, people around him might have tried to torpedo that rapprochement, convinced that hostility with Washington was the best way to ensure the survival of the regime as conceived by its founder.

Weak point. Although Fidel Castro's reluctance towards rapprochement with the U.S. is true, it is difficult to think that the most conservative sector within Castroism would dare to boycott so directly Raul Castro's fundamental political line. It is another thing that, after he handed over the presidency of Cuba to Miguel Díaz-Canel in April 2018, some sectors within the regime could make internal movements to send certain messages, but the changeover occurred when most of the acoustic episodes had already taken place.

3) A third country (Russia, China)

The third option would be that a third country generated the attacks. American intelligence indicates that the most viable option in this case would be Russia. Moscow has been keen to return to operating in the Caribbean, as in the Cold War, and aggression against U.S. diplomats in Cuba would fit in with its strategy. It has also been suggested that China might want to repay Washington in its backyard with the same harassment that the Chinese believe they feel from the US in their nearest seas.

Weak point. The return of Russia to the Caribbean is certainly documented, and it is conceivable that Moscow could have promoted a punctual action against some specific goal , but it seems difficult that it would have sustained over time an operation that harms Cuba's sovereignty. As for China's presence in the US neighborhood, it is a less confrontational move than the one carried out by Russia. Moreover, if Beijing had chosen foreign soil in order to better erase the traces of an action against US diplomats, then the cases recorded in Guangzhou would not have occurred.