Cryptonym: ERYTHROID-12
05/03/65: Cable from Managua to Director: "1. Rogelio Cisneros/AMBANG-4 arrived MANA from TEGU 27 April via TACA 773 and entered country without difficulties. His later detention on 30 April not connected JURE or exile politics, but on charge fraudulent application for NIC passport. He purported to be NIC citizen born Matagalpa 30 March 1927 on application form. ERYTHROID-12 turned over copy of application and photo to Station and said Cisneros had sent it in through travel agency hoping it would not attract attention. When questioned by E-12, Cisneros stated he knew it illegal but would be more convenient to travel on NIC passport than with old Cuban passport and constant bother keeping up US residency, reentry permits, etc. 2. E-12 said Cisneros given choice leaving country or standing trial. He chose to leave and departed 2 May for Panama."
104-10234-10153: CABLE RE: ON 6 MARCH ERYTHROID-12 TOLD STAFF AGENT ANGUS J. LAVERDURE
03/15/66: Cable from Managua to Director (Ditzion Acting): Slugline TYPIC AMROD: "1. On 6 March ERYTHROID-12 told staff agent Angus J. Laverdure/Miguel Hazar Naro/LITEMPO-12 that close friend of his was intimate of Rolando Cubela and was giving him information about the Cubela affair being a CIA operation which he was positive had been penetrated by Castro. Friend turned out to be Miguel de Leon/AMWORM-1, Cuban exile residing MANA. Laverdure did not press E-12 for info since unfamiliar with CIA interest. 2. On 8 March MANA newspaper La Prensa published interview with Leon and quoted him as saying Fidel Castro making same error with Cubela as he did with Camilo Cienfuegos and Che Guevara. E-12 planned interview with Leon 9 March and invited Laverdure to listen without knowledge of Leon. Laverdure monitored interview from adjoining office with some difficulty. Leon spoke generalities concerning Cuban operations. Concerning Cubelas he told E-12 that it was a CIA operation and that Cubelas had been trained in Paris. Leon mentioned Kennedy family interest in the affair. He maintained that he positive that CIA operation was penetrated. Mentioned AMBIDDY-1 (Manuel Artime Buesa) as one of the principals and referred to him as boy scout. Names mentioned during one hour conversation were (all phonetic) Juan Palayes Teran, FNU Gallereta, Carlos Pedraza, Justo Rodriguez, Luis Perez and Antonio Carillo. Also named IDENTITY A as COS Madrid and IDENTITY B as KUBARK (CIA) staffer. 3. When Leon left E-12 office E-12 said Leon very dedicated to Cuban cause but has compulsion to talk to someone. Claims Leon has been involved many exile activities and has worked indirectly for CIA. E-12 also said Leon has spent 30,000 dollars of personal funds fighting Castro." (CONTINUED BELOW) - - - For unredacted version see: https://www.archives.gov/files/research/jfk/releases/2021/docid-32380726.pdf
104-10234-10153: CABLE RE: ON 6 MARCH ERYTHROID-12 TOLD STAFF AGENT ANGUS J. LAVERDURE
03/15/66: Cable from Managua to Director: Slugline TYPIC AMROD: "4. During interview Laverdure got impression that Leon might have known someone from CIA was listening since his voice very loud and spoke as if making speech rather revealing secrets to close friend. It possible E-12, who anxious to identify with CIA, may have set up interview to give Leon opportunity to voice his feelings. This possibility reinforced by fact that this was second such talk between E-12 and Leon in three days. If Leon involved CIA operations and is security risk or if his detailed debriefing of interest HQs, please notify. Leon remains accessible through E-12 and possibly directly if desired." Handwritten note on page 1: "not indexed, field did not request indexing does not meet HQs criteria." - - - Page 4: 03/15/66: Cable from Managua to Director (Ditzion Acting): REF: MANA 5627 (IN 74776): "IDENTITY A is FNU Williamson. IDENTITY B is Joaquin Fowler."