NPR
The great mystery behind what hurt two dozen U.S. diplomatic personnel in Cuba remains unsolved, according to a Senate hearing on Tuesday. But an FBI investigation is casting doubt on a once-popular theory: that embassy staff were the victims of “sonic
‘Perplexing’ Cuba noise ‘attacks’ continue to baffle State DepartmentCNN
US probing if ‘viral’ attack sickened diplomats in Cuba – officialReuters
US officials still stumped on mystery illnesses in Cuba, open door to ‘viral’ or ‘ultrasound’ causeABC News
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Source: WORLD