There's a new development in the yearslong international mystery over Havana Syndrome: The U.S. has obtained and has been testing a device that officials believe could be linked to the debilitating ...

For the past year, the US Department of Defense has been conducting tests on a device that emits pulsed radio waves. Some investigators suspect it is the cause of the mysterious “Havana syndrome,” CNN ...

(CNN) - The U.S. Department of Defense is learning more about a device linked to “Havana syndrome,” which caused a serious of mysterious ailments beginning with United States officials in Cuba.