Russian military intelligence unit may be linked to ‘Havana syndrome’, Insider reports ReutersRussian nexus revealed during 60 Minutes Havana Syndrome investigation into potential attacks on U.S. officials CBS NewsRussia linked to U.S. officials’ “Havana syndrome” AxiosHavana Syndrome investigation links Russia to mysterious brain injuries The TelegraphRussia is behind Havana Syndrome, attacks on U.S., former lead Pentagon investigator says Yahoo! Voices