In 2016, U.S. diplomats in Havana, Cuba experienced something odd: a shrill noise that sounded like metal scraping against metal. Many of those affected complained of feeling nauseous and weak shortly after the experience, and some inside the embassy worried they were victims of a sonic attack.



Learn more about your ad choices. Visit podcastchoices.com/adchoices


Learn more about your ad choices. Visit podcastchoices.com/adchoices