From a 2018 study commissioned by the U.S. State Department to investigate claims that an auditory weapon was being deployed against American diplomats in Cuba. The study was published in September 2021 by BuzzFeed.

This study concerns a series of events affecting U.S. personnel stationed in Cuba. Some have reported medical symptoms that are correlated with, and have been attributed to, specific sensory phenomena experienced at their residences in Havana. Many of the affected individuals describe hearing unusual sounds. We believe the recorded sounds were most likely made by the Indies short-tailed cricket. The power levels in the audio part…