Cuba’s top diplomat deals with immigration, the Havana syndrome and more

In a rare and exclusive interview, Cuban Deputy Foreign Minister Carlos Fernández de Cossío, the island’s most important figure in U.S.-Cuba relations, discusses his thoughts on the record number of Cubans being processed at the southern border, the findings from a Cuban investigation into Havana Syndrome, and more with CBS News immigration and politics reporter Camilo Montoya-Galvez.