Who, or what, is behind the 'Havana Syndrome'?

In 2016 dozens of US diplomats and their family members in Cuba fell sick with a mystery illness. Since then hundreds of cases of 'Havana Syndrome' have been reported amongst US Embassy personnel around the world. Now, new cases have been reported in the American missions in Paris and Geneva. But who, or what, could be to blame? Join host Peter Dobbie. With guests: Robert Bartholomew - Honorary Senior Lecturer, Department of Psychological Medicine at the University of Auckland and co-author of 'Havana Syndrome: Mass Psycogenic Illness and the Real Story Behind the Embassy Mystery and Hysteria'. Natasha Lindstaedt - Deputy Dean of Social Sciences at the University of Essex. Glenn Carle - former CIA and Deputy National Intelligence Officer.