More research on diplomat brain injuries in Cuba, but few answers

Diplomats who sustained mysterious brain injuries while stationed in Cuba experienced a cluster of symptoms, including anxiety, mental fog and dizziness, that is more complex than previously reported, scientists said Wednesday. The problem began in the fall of 2016, when diplomatic personnel residing in Havana began to complain of ear pain after reporting hearing a high frequency noise, or sometimes a feeling of pressure in the ears, which followed them throughout a room. In September 2017, the United States blamed Havana for failing to protect its diplomats and withdrew more than half its staff from the embassy while expelling 15 Cuban diplomats from Washington.