From NY Times:
https://www.nytimes.com/2019/01/04/science/sonic-attack-cuba-crickets.html
The Sounds That Haunted U.S. Diplomats in Cuba? Lovelorn Crickets, Scientists Say
Diplomatic officials may have been targeted with an unknown weapon in Havana. But a recording of one sonic attack actually is the singing of a very loud cricket, a new analysis concludes.
In November 2016, American diplomats in Cuba complained of persistent, high-pitched sounds followed by a range of symptoms, including headaches, nausea and hearing loss.
Exams of nearly two dozen of them eventually revealed signs of concussions or other brain injuries, and speculation about the cause turned to weapons that blast sound or microwaves. Amid an international uproar, a recording of the sinister droning was widely circulated in the news media.
On Friday, two scientists presented evidence that those sounds were not so mysterious after all. They were made by crickets, the researchers concluded.
Thats not to say that the diplomats werent attacked, the scientists added only that the recording is not of a sonic weapon, as had been suggested.
Alexander Stubbs of the University of California, Berkeley, and Fernando Montealegre-Z of the University of Lincoln in England studied a recording of the sounds made by diplomats and published by The Associated Press.
Theres plenty of debate in the medical community over what, if any, physical damage there is to these individuals, said Mr. Stubbs in a phone interview. All I can say fairly definitively is that the A.P.-released recording is of a cricket, and we think we know what species it is.
Sid