“… te سال As the record reflects, both the FBI and the CIA were seriously concerned with Ambassador Mann's inter- jection of himself i nto the Mexico City investigation. On November 27t h, the FBI liaison officer to the CIA, Sam Papi ch, spoke with Birch Neal of the CIA's Counter- intelligence …”

“the State Departm ent and also noted that Alvardo was being reinterrogated by CIA representatives in Mexico City. He commented: It will not have escaped your attention that the wealth of detail Al var ado gives about events and personalities involved w …”

“… ) pof aria Commilission Stat With holding information from Me Warren Consmi the photosurveillance and t pertathirstofthe 2) As of the CIA's Mexico City Station effects of the a related consideration, the the controversy sur- NW 66000 Docld:32271360 Page 7 NW 66000 as redacted Therein. the 1 …”

“aph now referred to as that of the "Mexico City Mystery Man" Each of these concerns will be examined The CIA's concern for revealing the existence of sensitive technical operations, as ou …”

“mission regarding ) Lee Harvey Oswald's trip to Mexico City. (Cite.) Much of the informa- S31Janmemo tion provided to the Warren Commission in this report was based upon sensitive sources and methods …”

“e FBI could the supply the Warren Commission with source ) (The FBI had knowledge of CIA shows ) ) ) In Mexico City, see CIA SOCI-3/779/510) O'Neal's memorandum that he discussed this matter with Scelso who in turn, after a discussion with Helms, was dire …”

“… ) pof aria Commilission Stat With holding information from Me Warren Consmi the photosurveillance and t pertathirstofthe 2) As of the CIA's Mexico City Station effects of the a related consideration, the the controversy sur- NW 66000 Docld:32271360 Page 7 NW 66000 as redacted Therein. the 1 …”

“… on of the background to the first major CIA report furnished the Warren Commission regard mis sion regarding ) Lee Harvey Osw ald's trip to Mexico City. (Cite.) Much of the informa- S31Janmemo tion provided to the Warren Commission in this report was based upon sensitive sources and method …”

“… ledge of CIA sources and methods was articulated as early as December 20, 1963, at which time a cable was sent from CIA headquarters to the Mexico City Station which stated: Our present plan in passing information to the Warren Commi ssion is to eliminate mention of Docld:32271360 Page 8 ON …”

“… . L Papich queried O'Neal whether the FBI could the supply the Warren Commission with source ) (The FBI had knowledge of CIA shows ) ) ) In Mexico City, see CIA SOCI-3/779/510) O'Neal's memorandum that he discussed this matter with Scelso who in turn, after a discussion with Helms, was dire …”

“… f aria Commilission Stat With holding informa tion from Me Wa rr en Consmi the photosurveillance and t pertathirstofthe 2) As of the CIA's Mexico City Statio n e”

“rr en Consmi the photosurveillance and t pertathirstofthe 2) As of the CIA's Mexico City Statio n e ffects of the a related consideration, the the controversy sur- NW 66000 Docld:32271360 Page 7 NW 66000 as redacted Therein. the …”

“… tion of the background to the first major CIA report furnished the Warren Commission regard mission regarding ) Lee Harvey Oswald's trip to Mexico City. (Cite.) Much of the informa- S31Janmemo tion provided to the Warren Commission in this report was based upon”

“… ledge of CIA sources and methods was articulated as early as December 20, 1963, at which time a cable was sent from CIA headquarters to the Mexico City Station which stated: Our present plan in passing information to the Warren Commission is to eliminate mention of Docld:32271360 Page 8 ON …”

“… . L Papich queried O'Neal whether the FBI could the supply the Warren Commission with source ) (The FBI had knowledge of CIA shows ) ) ) In Mexico City, see CIA SOCI-3/779/510) O'Neal's memorandum that he discussed this matter with Scelso who in turn, after a discussion with Helms, was dire …”

“methods is further revealed by examination of an Agency cable, dated January 29, 1964, sent from CIA Headquarters to the CIA Mexico City Station. That cable indicated that knowledge of Agency sources and techniques was on that date still being withheld from the Warren Commiss …”

“ission, at least during of the Commiss yon's work, the initial stage of the CIA veillance operations in Mexico City and photo sur- Helms testified: The reason for the sensitivity of these and surveillance was not only be- cause it was sensitive from the A …”

“… ) pof aria Commilission Stat With holding information from Me Warren Consmi the photosurveillance and t pertathirstofthe 2) As of the CIA's Mexico City Station effects of the a related consideration, the the controversy sur- NW 66000 Docld:32271360 Page 7 NW 66000 as redacted Therein. the 1 …”

“… on of the background to the firs t major CIA rep ort furnished the Warren Commission regard mission regarding ) Lee Harvey Oswald's trip to Mexico City. (Cite.) Much of the informa- S31Janmemo tion provided to the Warren Commission in this report was based upon sensitive sources and method …”

“… ledge of CIA sources and methods was articulated as early as December 20, 1963, at which time a cable was sent from CIA headquarters to the Mexico City Station which stated: Our present plan in passing information to the Warren Commission is to eliminate mention of Docld:32271360 Page 8 ON …”

“… Papich querie d O 'Nea l whether the FBI could the supply the Warren Commission with source ) (The FBI had knowledge of CIA shows ) ) ) In Mexico City, see CIA SO CI-3/779/510) O 'Neal's memorandum”

“e FBI had knowledge of CIA shows ) ) ) In Mexico City, see CIA SO CI-3/779/510) O 'Neal's memorandum that he discussed this matter with Scelso who in turn, after a discussion with Helms, was di …”

“… ve sources and methods is further revealed by examination of an Agency cable, dated January 29, 1964, sent from CIA Headquarters to the CIA Mexico City Station. That cable indicated that knowledge of Agency sources and techniques was on that date still being withheld from the Warren Commiss …”

“… BJECTS: Document Information DOCUMENT TYPE: CLASSIFICATION: RESTRICTIONS: CURRENT STATUS: DATE OF LAST REVIEW: OPENING CRITERIA : COMMENTS: MEXICO CITY MARTINEZ, CIPRIANIO NOTES Unclassified 1A; 1B Redact 01/01/2003 Box 11 v9.1 NW 66000 Docld:32271374 Page 1 0 1 Date: 2/8/2016 Released unde …”

“… Consuelo Esperon's personnel record in Mexico could not be located. When the Mexican officials in- quired about her at the Cuban Embassy in Mexico City prior to the Committee's trip, no one at the office remembered that she had worked there. Committee staff members were told that Esperon wa …”

“… nator at the School of Interior Design, had not yet been located. Luis Alberue Suoto lives at Michelet %37, Apartment #301, Colonia Aneura, Mexico City. His phone number is 545-9947. The landlady at his apartment explained to Classification: 1 NW 66000 Docld:32271374 Page 4 Classified by de …”

“… t 3:30 p.m., Agent Martinez finally reached Mr. Contreras' child who informed him that Mr. Contreras was not in Tampico. He had traveled to Mexico City for a Partido Republicano Institucional convention. When Agent Mar- tinez asked the child if he knew where his father was staying in Mexico …”

“… get a room at either the Hotel Regis or Hotel San Francisco. Mrs. Contreras explained that since there were a few conventions scheduled in Mexico City that weekend she could not assure that he would be at either Mrs. Contreras told Agent Martinez that she would notify him if her husband sh …”

“… tee offices in Washington. The Committee never received any interview reports from the Mexican government. The Committee staff members left Mexico City at 1:55 p.m. and arrived at Washington's Dulles Airport at 10:35 p.m. Classification: 2000433 Classified by derivation:”

“… 2 Document Information SUBJECTS: DOCUMENT TYPE: CLASSIFICATION: RESTRICTIONS: CURRENT STATUS: DATE OF LAST REVIEW: OPENING CRITERIA : AMMUG MEXICO CITY STATION HIDALGO, BARNEY SUMMARY Unclassified 1A; 1B Redact 01/01/2003 COMMENTS: Box 11 v9.1 NW 66000 Docld:32271380 Page 1 1 Date: 2/8/2016 …”

“… information on A-l and his knowledge of the DGI. This cable identified certain DGI officers stationed at the Cuban Embassy and Consulate in Mexico City. Mr. Hidalgo stated that he had reviewed the above-referenced cable upon its receipt at CIA headquarters. Mr. Hidalgo refused to identify t …”

“… to indicate their affiliation with Cuban Intelligence. When asked if A-1 had reported which DGI officer Lee Harvey Oswald had dealt with in Mexico City, Mr. Hidalgo would not answer. Mr. Hidalgo also would not answer if he had been stationed in Mexico. He did state that he had been in Mexic …”

“em. Mr. Hidalgo explained that he had contact with the Cuban Embassy in Mexico City but not to their NW 66000 Docld:32271380 Page 7 page 7--Hidalgo interview.”

“an Embassy in Mexico City but not to their NW 66000 Docld:32271380 Page 7 page 7--Hidalgo interview. knowledge. When asked if this meant that he was running penetrat …”

“… oman, Mr. Hidalgo stated, was a close associate of Silvia Duran's. It was his belief that this agent had not worked in the Cuban Embassy in Mexico City. When asked to reveal the agent's name, Mr. Hidalgo responed that he could not recall the name. He did remember that the agent's Mexico Cit …”

“… s familiar to him. He replied in the negative. He did recall, however, hearing the pseudonym "Ernesto" used in relation to DGI personnel in Mexico City. In response to the question of whether he had known AMLASH/1 or ever acted as AMLASH/1's case officer, Mr. Hidalgo replied in the negative …”

“… the document. He further stated that he had never seen the transcript of Calderon's 22 November 1963 conversation intercepted by the CIA in Mexico City. He explained that when this report was written he was no longer working on Cuba-related assignments. Mr. Hidalgo was next shown CIA dispat …”

“… ther than an attempt to travel to Cuban, Silvia Duran's knowledge has probably been exhausted.)*708 (Memorandum for the Record re Trip to Mexico City, from W. David Slawson, 4/22/64 pp. 39-40 Last paranthetical in the original.) The Warren Commission staff's attempts to interview Ms. Dura …”

“d re Trip to Mexico City, from W. David Slawson, 4/22/64) Ms. Duran was not interviewed by Americans 709 until 1976, when two reporters from the Washington Post 710 …”

“o indication in the report as to why LIRING/3's contact with Duran would make the Cubans suspicious. 747 The CIA Mexico City Station reported this information to Headquarters: First that Silvia Duran had sexual intercourse NW 66000 Docld:32271385 Page 9 -208- with …”

“Garrofreported the same information to Charles Thomas in 1965. *751 (SeeSection VI below.) dition In hex chronology of the Mexico City investigation of Oswald THE Ann Goodpasture notes: "Why didn't Mexi police give us RAYMOND ROCCA 750 all info?" (WX-7241, entry по: 613.) T …”

“… er than an attempt to travel to Cuban, Silvia Duran's knowledge has probably been exhaust ed.) *708 (Memorandum for the Record re Trip to Mexico City, from W. David Slawson, 4/22/64 pp. 39-40 Last paranthetical in the original.) The Warren Commission staff's attempts to interview Ms. Dura …”

“… sass ination./ There is no ind icati on in the report as to why LIRING/3's contact with Duran would make the Cubans suspicious. 747 The CIA Mexico City Station reported this information to Headquarters: First that Silvi”

“picious. 747 The CIA Mexico City Station reported this information to Headquarters: First that Silvi a Duran had sexual intercourse NW 66000 Docld:32271385 Page 9 -208- wit …”

“*751 (SeeSection VI below.) dition In hex chronology of the Mexico City investigation of Oswa ld TH E Ann Goodpasture notes: "Why didn't Mexi police give us RAYMOND ROCCA 750 all info?" (WX-7241, entry по: 613.) …”

“… her than an attempt to travel to Cuban, Silvia Duran's knowledge has probably been exhausted.)*708 (Memorandum for the Rec ord re Trip to Mexico City, from W. David Slawson, 4/22/64 pp. 39-4 0 Last paranthetical in the original.) The Warren Co mmission staff's a ttempts to interview Ms. D …”

“710 interviewed he r. 7.) On June 6, 1978, rep resentatives of the House Select Committee on A ssas sinations inter- viewed Ms Duran in Mexico City. NW 66000 Docld:32271385 Page 4 VI. Information not available at the time of the Warren Commission INVESTIGATION TIRADO (NEE DUPAN) A. Silv …”

“… Duran. Elena how Garrofreported the same information to Charles Thomas in 1965. *751 (SeeSection VI below.) dition In hex chronology of the Mexico City investigation of Oswald THE Ann Goodpasture notes: "Why didn't Mexi police give us RAYMOND ROCCA 750 all info?" (WX-7241, entry по: 613 .) …”

“… ther than an attempt to travel to Cuban, Silvia Duran's knowledge has probably been exhausted.)*708 (Memorandum for the Record re Trip to Mexico City, from W. David Slawson, 4/22/64 pp. 39-40 Last paranthetical in t he original.) The Warren Commission staff's attempts to interview Ms. Dur …”

“… on Post 710 interviewed her. 7.) On June 6, 1978, representatives of the House Select Committee on Assassinations inter- viewed Ms Duran in Mexico City. NW 66000 Docld:32271385 Page 4 VI. Information not available at the time of the Warren Commission INVESTIGATION TIRADO (NEE DUPAN) A. Silv …”