AdvertisementA CIA Officer Visits Moscow, Returns With Mysterious, Crippling HeadachesOctober 27, 2020Greg MyrefacebookEmailMarc Polymeropoulos, a senior CIA official, photographed in Moscow's Red Square in 2017. He fell ill on that trip and has since suffered debilitating migraine headaches that led him to resign from the agency. (Courtesy of Marc Polymeropoulos)