Cryptonym: GROOVY
https://www.archives.gov/files/iwg/declassified-records/rg-263-cia-records/second-release-lexicon.pdf
CIA document: Research Aid: Cryptonyms and Terms in Declassified CIA Files Nazi War Crimes and Japanese Imperial Government Records Disclosure Acts: Page 30: ..."Term: GROOVY. Definition: Cable Indicator for Austrian intelligence operations..."
https://www.cia.gov/readingroom/docs/HOETTL%2C%20WILHELM%20%20%20VOL.%205_0119.pdf
09/19/52: Cable from Sr. Rep. Salzburg to Director: Slugline INTEL/GROOVY: REF: DIR 18739 (OUT 54037): "1. Receipt ref coincided with informal discussion on subjects future role with GRUESOME (Detachment 35 of G-2 US Forces Austria - Det 35 G-2 USFA) chief who states plans use subject under Linz business cover to attack REDCAP (a program of operational exploitation of Soviet personnel) type targets have not and not expected to pan out. GRUESOME queried as to possibility transfer subject to DYCLEMATIS (CIA Office of Special Operations - OSO) control citing difficulties in control of subject which we better equipped to overcome than they and fact his most profitable intell possibility now and probably in near future is to report contacts with resurgent CIS. 2. (REDACTION) cool to idea transfer subject to local DYCLEMATIS control based on marginality of interest in CIS (from standpoint our SOI) plus fact that subject 1 of most widely known intell operators in area. Probable that subject as old pro will remain in intell business even after CIS issal by GRUESOME but see no reason for SALZ base to become involved. Unless another DYCLEMATIS station interested in subject's services which doubt in view ref will advise GRUESOME we have no interest his future."
https://www.cia.gov/readingroom/docs/GRCROOND%20GRREPAIR%20%20%20VOL.%203%20%20%28GRCROOND%20OPERATIONS%29_0009.pdf
10/06/53: Dispatch from Chief of Mission, Austria to Chief, EE: Subject: Operational/GRBOUNCE/GROOVY/Program for Preparation for Wartime Operational Activity in Austria: "Background: 1. Reevaluation of present paramilitary and stay-behind operations and the paramilitary program for Austria (as expressed formally in the Austrian Country Plan, plus revisions thereof) has been in progress in the field for several months. In April 1953, an analysis was prepared in draft form for review and criticism by Mission officers responsible for PM activity, including personnel who have subsequently departed the Mission, (REDACTION) and (REDACTION). This dispatch is based on this analysis and these comments and may be said to represent a distillation of the combined experience and judgement of all qualified field officers, including many who have been engaged in KUBARK (CIA) Austrian PM and stay-behind activity since its inception. 2. The approach employed in this reevaluation has been to analyse our past experience and to determine what modifications in existing projects are required, and what new activities can and should be undertaken in the general field of preparations for wartime operations. The result is, in our opinion, a new program under which the maximum possible number of operational assets for wartime use will be developed securely during peacetime, both in satisfaction of specific requirements set forth by the military and of objectives felt by the Austrian Mission to be rewarding from the standpoint of eventual conduct of covert operations in wartime...The receipt during August 1953 of SHAPE and US EUCOM unconventional warfare requirements has demonstrated very clearly the need for flexibility; with the exception of a requirement for a guerrilla area in the Hochschwab, the SHAPE and US EUCOM requirements do not coincide with the operations we have developed to date..."
104-10172-10111: HALPERIN, MAURICE HYMAN.
11/22/58 cable from REDACTED to Director, slugline GROOVY GRENGULF: "1. GRENGULF reports that a Morice (sic) Halpin (note: Maurice Halperin) DPB 3 March 1906 and his wife Edith, nee Frisch, DOB 6 July 1907, both carrying US passports, entered Austria from Suisse on 10 Nov 1958. Passports had Czech visas. According GRENGULF, this couple reportedly belong to circle of acquaintances of atom spy Klaus Fuchs and during their stay in Suisse were under close surveillance." Handwritten: 201-128561. Slugline GROOVY GRENGULF also on a 11/24/58 memo at p. 129: "Chief of Station comment: Action responsibility for this cable has been transferred from EE to WH by Mr. REDACTED EE ext 8473, in coordination with Mr. REDACTED WH ext 2555." At p. 33, 1/19/61: "Maurice Halperin, former OSS officer Latin American affairs specialist, and Martha Dodd Stern, former resident Mexico, both previously implicated Soviet espionage in (USA). Both now in Bloc...Pass above to TIEBAR-8." At p. 7, Halperin's 1961 book "Dessarollo Economica y Crisis en la America Latina."
https://www.cia.gov/readingroom/docs/GRCROOND%20GRREPAIR%20%20%20VOL.%204%20%20%28GRCROOND%20OPERATIONS%29_0007.pdf
07/10/59: Cable from Vienna to Director: Slugline KAPOK GROOVY GRCROOND: RE VIEN 5433 (IN 39035): "Request traces and POA for contact, recruitment as short-term stay-behind spotted for GRCROOND. IDEN was investigator for CIC in Linz and was USEP investigator in VIEN until recent cutback, was Afrika Korp radio operator in World War II. No derog info VIEN or GRBANAL files." - - - "GRCROOND Project involved staybehind paramilitary operations in Austria to develop escape and evasion network. GRREPAIR Project developed the central section of the escape and evasion network in Austria. Egbert Hochhauser, Hans Tschurtscenthaler considered for possible use on Project GRCROOND." See page 30 of this document: https://www.archives.gov/files/iwg/declassified-records/rg-263-cia-records/second-release-lexicon.pdf