A CIA operative with nausea, headache, and dizziness visited the American Embassy’s health office in Havana in December 2016. Two other CIA officers reported identical symptoms a few days later. By late 2018, 26 Americans and 13 Canadians have reported nausea, hearing loss, vertigo, nosebleeds, and difficulty focusing. In every case, sufferers said that a weird noise they heard in their houses or hotel rooms prompted their symptoms. The noise was described as high-pitched by one witness. “A laser of sound, aiming into their bedroom,” said another. Some claimed the sounds were more akin to stones rolling over the floor. Up until these days, no one has a single clue on what causes the disease or what even is the disease that has happened to these people.