(Washington Composite Electric) The US intelligence high -level report announced on Wednesday that about 1,000 US diplomats and intelligence personnel suffered a healthy event of "Havana syndrome", which is likely to be caused by electromagnetic energy pulse.
It will cause symptoms such as tinnitus and dizziness within the frequency range of radio
In this report, the technology and medical expert group pointed out that "ElectromagneticnerGypulses, especially in the range of radio frequency," can cause symptoms such as tinnitus and dizziness.The report means that ultrasonic waves may also cause such symptoms, but it must be within a short distance because the transmission of ultrasonic waves in air and building materials is very weak.
Experts say that by setting up a hidden device, it is possible to do it with electromagnetic energy or ultrasonic attacks and cause damage.However, they did not explain whether such devices existed, or such attacks did have happened, and they did not indicate possible hackers behind the scenes.
"Havanasyndrome" first appeared in 2016. At that time, the embassy in the Havana embassy in Cuban suddenly appeared such symptoms.In the past five years, similar incidents have also occurred in Russia, China, Tajikistan and some African countries.
The report also pointed out that some health abnormal events "cannot be explained according to the existing known environment or medical conditions."The Central Love Bureau said that in these 1,000 incidents, there were still more than 20 reasons that could not be explained.
Director of the White House Science and Technology Policy Office, Rande said that after nearly nine months of investigation, the expert group has widely obtained the "information information and patient reports", and visited related doctors and patients to determine the patient’s patient’s.The symptoms are "real and convincing."
However, the above report did not mention the problem of accountability, and because the conclusions were vague, it is generally believed that this will make those former American and current officials who have suffered more dissatisfaction.
