Cryptonym: PLVWCADET
104-10095-10326: LISTING OF TRAFFIC REMOVED FROM C/WHD FILES DURING WATERGATE FILE SEARCH
4/24/74 memo: "RYBAT/JMSPUR/PLVWCADET traffic removed from C/WHD personal files during Watergate file search. Traffic can be found in sealed sensitive envelope in Safe No. 1322 located in WH/COG, Room 3D46." What follows is a list of apparently sensitive files.
104-10095-10044: CABLE CONCERNING HSCA INVESTIGATORS' TRIP TO MEXICO CITY
11/30/76 memo from Director (REDACTED) to Mexico City, Priority: "HQS was unaware until 28 November that House Select Committee investigators went to Mexico City on 27 November to interview a former agency translator (possibly Mr. Boris Tarasoff who now resides in Guadalajara) and an unidentified former Agency typist who allegedly prepared a transcript of a telephone call made in late September 1963 by Lee Harvey Oswald to the Soviet Embassy in Mexico City. The transcript of this call, according to Mr. Ronald Kessler in his 27 November "Washington Post" article, allegedly contained an offer by Oswald of undefined information in return for a free trip to the USSR. Should House Select Committee investigators contact the station you should be aware that no staff member of the committee has yet received a security clearance. Station should, therefore, not discuss with investigators any classified information regarding Oswald's activities in Mexico City between 27 September and 3 October 1963... Some consideration being given at HQs to make full public disclosure of agency holdings relating to Lee Harvey Oswald activities during 1963 trip to Mexico City (which in part monitored by teletap and photographic surveillance), as well as related developments. Such public disclosure would obviously reveal liaison relationship, joint ops and agent true names including possible identity lessee of houses used for photo surveillance. Please provide us with your considered view of reaction of liaison and Mexican government and political and operational connotations and implications if a full public disclosure was made."
11/30/76 from Mexico City to Director: ..."wish protest in strongest terms against full public disclosure of Agency holdings relating to Oswald activities in Mexico...in sum, we believe that any public disclosure...will get us into even more trouble than we are in at present. "While we would have no objection to detailed and truthful summary of Oswald activities as such, the official revelation of our liaison relationship, joint ops, and agent true names including the possible identity of lessee of houses used for photo surveillance would have devastating impact here. It would embarrass our friends, delight our enemies, reduce utility and effectiveness of ongoing operations and expose new Lopez Portillo administration to barrage of questioning about cooperation with CIA, whether such cooperation continuing and so forth. "In our judgment any such revelation of joint operations with liaison may effectively terminate KDBADGER and similar activities...It should be remembered that telephone taps in Mexico City are unconstitutional. At minmum, official statement about joint operations would confirm the writings of Phil Agee and Joseph Smith. "It also seems to us that such statement would be in violation of our obligation to protect sources and methods. If agency can release info on
104-10144-10016: INVESTIGATORS FROM HSCA IN MEXICO
12/3/76 memo from Mexico City to Director: "Ambassador Jova phoned COS (Chief of Station)...2 December advising that he had two investigators of HSCA at his residence...shortly thereafter the two investigators arrived at COS home and introduced themselves as Kenneth E. Brooten, Jr., counsel of Select Committee and S. Jonathan Blackmer, assistant counsel...according to Mr. Brooten, the Committee in Washington received information of undetermined reliability that the Cuban Embassy in Mexico City had a file on Cuban relations with Oswald and that Cuban Embassy would be prepared to turn this file over to the US congressional committee investigating the Kennedy murder. Brooten, who appeared to be (a) man of considerable sophistication, said that neither he nor his principals accept that report at face value and that they were well award of problems and complications Cubans could cause by turning over false or doctored information."
104-10428-10212: CABLE: VISIT TO MEXICO BY HOUSE SELECT COMMITTEE COUNSEL
12/3/76 follow-up memo from Mexico City to Director: "In second converation with COS...(Brooten) said that the purposed of their trip to Mexico was solely in connection with possible contact with Cuban embassy...and that he and Mr. Blackmer did not interview nor had any plans to interview former Agency employees in Mexico."