A preliminary CIA report concluded that a global campaign by a foreign power was likely not the cause of a mysterious illness known as Havana syndrome that's afflicted American and Canadian diplomats around the world, an agency official said.
Why it matters: A CIA official told Axios that most of the 1,000 cases reported to the government could be "explained by medical conditions or environmental and technical factors, including things like previously undiagnosed illnesses and the fact that many of the reports were made out of an abundance of caution."