Top Cuban diplomat weighs in on immigration, Havana Syndrome and more

In a rare and exclusive interview, Cuban Deputy Foreign Minister Carlos Fernández de Cossío, the island nation's point person in US-Cuba relations, talks about his thoughts on the record number of Cubans processed at the border south, the conclusions of a Cuban investigation in Havana. Syndrome, and more with CBS News immigration and politics reporter Camilo Montoya-Galvez.