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Fxoc AD;Ad Memorandum Exoc AD Inv. Exoc Ap LES Asst. Dir.t Adm, Servs. Crim.Inv. Idont. Insp. Intell, Lab. b6 Date 6/13/84 Legal Coun. --b7C Off. Cong. & Public Affs. Rec. Mgnt. Tech. Sorvs. Training Telaphone Rm. Diractor' Subject FREEDOM OE INEORMATIONACT.(FOIA)-REOUEST.OF PROFESSOR ATHAN THEOHARIS FOR THE SYMBOL NUMBER SENSITIVE SOURCE^INDEX (SNSSI) PURPOSE: To advise of a previously undisclosed, surreptitious entry identified during the review of the SnssI. RECOMMENDATION: That the attached material be reviewed by the Office of Professional Responsibility for any appropriate. action. APPROVED: Adm. Servs. Laboratory Crim. Inv. Legal Coun. Off. of Cong. Director &Public Affs Exec. AD-Adm. Kent. Roo.Mgnt. Exec. ADInv. Incction Tech. Servs Exec. AD-LES Inieli. Training DETAILS: Athan Theoharis, a history professor at Marquette University, requested under the FoiA access to the SnssI.. The SNssI is currently known as the National Security Electronic. Surveillance Card Index (NsEscr) and is comprised of 3x5 index cards identifying various forms of source coverage, active and inactive, of individuals and organizations. Mr. Theoharis requested, among other things, copies of index cards which. indicate surreptitious entries by the Federal Bureau of. Investigation. DE-74 Ste-ihnoll z91 (2Q-ENCLOSURE Enclosures Cearched Numbered b6 1 Mr . Glover 12 JUN 25 1984 1 1 T T 1 12 JUN 28 1984 f9I/D0J