Over the past five years, more than 130 US government personnel have been impacted by a strange neurological condition known as "Havana Syndrome,” causing chronic headaches, memory problems, loss of stability and other brain injuries. First identified in Havana, Cuba, in 2016 and largely overlooked by the US government, evidence increasingly suggests that Havana Syndrome may be the result of targeted attacks by Moscow.

CBS’ Catherine Herridge joins Marc and Dany to discuss her investigation into Havana Syndrome, evidence that the condition is the result of a targeted attack, and why Moscow is likely responsible. They also talk about the US response and how to help those affected.

Catherine Herridge is an award-winning senior investigative correspondent for CBS News covering national security and intelligence. Prior to joining CBS News, Herridge was the chief intelligence correspondent for FOX News Channel and worked as a TV and radio correspondent for ABC News in London.

Download the transcript here.