‘Havana syndrome’ investigator on accusing Russia of targeting U.S. officials PBS NewsHourAn Alleged Russian Spy Was the Chef of DC’s Mari Vanna WashingtonianUS defense official had ‘Havana syndrome’ symptoms during a 2023 NATO summit, the Pentagon confirms The Associated PressOpinion | Russia might have caused Havana syndrome. A new inquiry is needed. The Washington PostHavana Syndrome mystery continues as a lead military investigator says bar for proof was set impossibly high CBS News