Tras la ruta de los agentes rojos:Nuestro hombre en el Vaticano: René Juan Mujica Cantelar

 El señor RENE JUAN MUJICA CANTELAR es un hombre de éxito, un agente del servicio de inteligencia cubano, convertido en diplomático que lleva décadas realizando operaciones de influencia y desinformación en Europa. Su pertenencia al aparato de espionaje castrista es conocida y ha sido reportada en varias ocasiones,  https://cuba.blogspot.com/2008/03/when-spies-become-diplomats.html?m=0

    Fuente : StasiArchiv  MfS Abt. X 320

Mensaje en idioma ruso ,de la Dirección de Inteligencia cubana al servicio de espionaje germano oriental, avisando la llegada a Berlín , procedente de Moscú,( 24.9.1989 )del mayor RENE MUJICA y del coronel EDMUNDO SUÁREZ .

https://cubaminrex.cu/es/taxonomy/term/332

“However, the choice of René Mujica Cantelar as Cuba's ambassador to the  United Kingdom highlights a disturbing new trend. London is a close U.S. ally and, more important for Havana, a primary U.S. ally in the global 
war on terror. During extensive discussions during the past months, two former Cuban intelligence officers who are now in the United States identified Mujica as a deep-cover spy in Cuba's foreign-intelligence service, the Directorate of Intelligence (DI). Mujica spent his earlier years in U.S. posts. He served at the Cuban Interests Section in 1977-1986 and then at the Cuban Mission to the United Nations (CMUN) in 1990-93. Juan Antonio Rodríguez Menier -- who with the DI's predecessor, the Directorate General of  Intelligence (DGI), for 28 years -- noted that both of Mujica's U.S. postings carried the rank of first secretary. Historically, the DI uses senior diplomatic positions only for its higher-ranking officers” https://cuba.blogspot.com/2008/03/when-spies-become-diplomats.html?m=0

   https://cubaconfidential.wordpress.com/2013/12/17/retired-spy-back-in-europe-as-cuban-ambassador-to-germany/