Since 2016 a controversy has developed about a possible attack on US personnel at the U.S. Embassy in Havana. This talk will review all publicly available information about the incident, including medical follow ups of embassy personnel reporting symptoms, a review of medical records by the CDC, a report issued by a panel of the National Academy of Sciences, Engineering and Medicine (NASEM), and a recently declassified report by the Accountability Review Board (ARB) of the Department of State.