Havana Syndrome, the new weapon in the war of spies

LONDON – A specter roams the world, but unlike the one Marx dreamed of, no one knows for sure what lies behind it. It has a name: Havana syndrome. And symptoms: headache, fatigue, nausea, vision, hearing and balance problems, sometimes memory loss. The fear is that it is the last secret weapon in the espionage wars and that it is the Russia of Vladimir Putin.