From Wikipedia, the free encyclopedia
Havana syndrome is a set of medical signs and symptoms experienced by United States and Canadian embassy staff in Cuba. Beginning in August 2017, reports surfaced that American and Canadian diplomatic personnel in Cuba had suffered a variety of health problems, dating back to late 2016.
The US government accused Cuba of perpetrating unspecified attacks causing these symptoms. The US reduced staff at their embassy to a minimum, and US President Trump declared in October 2017 that he believed Cuba was responsible for the attacks.
|Symptoms||Hearing strange grating noises, headache, hearing loss, memory loss, and nausea|
‘Havana Syndrome’ likely caused by microwave energy, government study finds
Exclusive: The report on the neurological symptoms of U.S. diplomats in China and Cuba does not conclude that the directed energy was delivered intentionally, by a weapon.
Dec. 5, 2020, 1:51 PM +08
By Brenda Breslauer, Ken Dilanian and Josh Lederman
The mysterious neurological symptoms experienced by American diplomats in China and Cuba are consistent with the effects of directed microwave energy, according to a long-awaited report by the National Academies of Sciences that cites medical evidence to support the long-held conviction of American intelligence officials.
The report, obtained Friday by NBC News, does not conclude that the directed energy was delivered intentionally, by a weapon, as some U.S. officials have long believed. But it raises that disturbing possibility.
NBC News reported in 2018 that U.S. intelligence officials considered Russia a leading suspect in what some of them assess to have been deliberate attacks on diplomats and CIA officers overseas. But there was not — and is not now — conclusive intelligence pointing in that direction, multiple officials who have been briefed on the matter said.
A team of medical and scientific experts who studied the symptoms of as many as 40 State Department and other government employees concluded that nothing like them had previously been documented in medical literature, according to the National Academies of Sciences report. Many reported hearing a loud sound and feeling pressure in their heads, and then experienced dizziness, unsteady gait and visual disturbances. Many suffered longstanding, debilitating effects.
“The committee felt that many of the distinctive and acute signs, symptoms and observations reported by (government) employees are consistent with the effects of directed, pulsed radio frequency (RF) energy,” the report says. “Studies published in the open literature more than a half-century ago and over the subsequent decades by Western and Soviet sources provide circumstantial support for this possible mechanism.”
In the last year, as first reported by GQ Magazine, a number of new incidents have been reported by CIA officers in Europe and Asia, including one involving Marc Polymeropoulos, who retired last year after a long and decorated career as a case officer. He told NBC News he is still suffering the effects of what he believes was a brain injury he sustained on a trip to Moscow.
A source directly familiar with the matter told NBC News the CIA, using mobile phone location data, had determined that some Russian intelligence agents who had worked on microwave weapons programs were present in the same cities at the same time that CIA officers suffered mysterious symptoms. CIA officials consider that a promising lead but not conclusive evidence.
Electromagnetic energy, including frequencies such as radio and microwave, have been considered a leading possibility since the earliest days of the mystery. Early on, investigators also considered the possibility that sound waves, toxins or other mechanisms could have been involved, although no evidence is known to have emerged to support those theories.
Over the years, the FBI, CIA, U.S. military, State Department’s Diplomatic Security Service, National Institutes of Health and Centers for Disease Control and Prevention have investigated the incidents. None has come forward with any conclusions, and the State Department has quietly ceased using the word “attacks” to describe what happened, as then-Secretary of State Rex Tillerson and other top officials did in the early days after the incidents first came to light publicly in 2017.