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~ WANGARD Poked ma. 4 Office MemorS,.dum * UNITED TAL. GOVERNMENT ie TO t L. ¥, Boardnan DATE: Oct, &6, ao. er no ‘ rraom 1 A, 4, Belpgnt. \ x te a . ae . ‘ ~ suByect: DONALD DUART MACLEANZ. > GUY FRANCIS DE MONCY BURGESS ESPIONAGE - R Re the Director's memo 10/24/55 stating that while. ins} conference with the Attorney General on that date the latter bare desired to know how Burgess of the British Governnent secured i credentials enabling hin to have free movement through the Atomic Lnergy Headguarters whereas officials of the U. 5, Governnent were closely restricted and Supervised tm any visits mage to ,) Atomic knercy Headquarters, & ; Mr. Bryan ¥, LaFlante of the atomic Eneroy Commission (AEC) advised on 10/25/55 that Burgesa_cid not have a yass to the | ABC headquarters and records of 1 “that “Commission id. not. reflect gurcess sever yisited ALC h “heacguarters, He advisc* that eccorains, To_Al¢_records, 3 Maclean, upon instructions of Cor: ngtL Biisons, the ral Manager of the. he AEC, was issued a_non-escort pass... on, y British Solentisic Office located wy thin, the Abe’ headguarte ne, }| suilding., fhe nature lof the pass was, such that he could 20 Gur bi wh ee ~in ALC headquarters, ALC records.indicate that haclean mez aod Oe ae [igeaers Lae This pass was issued” to pernit &é kaclean £2. Distt. the ‘approzimately_ 20.visiis to the headguartera building. Hoelean_, was the Brittsh.. representative, on the_committee_concenned wigs atomic energy... motters.* On 6/22/48 the ALO was nat ifiec By the British Scientific Fission that a pass for Maclean ‘to this builé= ing was no longer needed, ‘/i}: bee, . Cov yes (‘€) By memoranca 1/5 and 1/12/54 we advised the Avtorney General of the focis relating to Maclean's access to AEC head- quarters, including the fact that the pass entitied kin to co anyvhere in AEC headquarters, and that aceerding to AIC recorce Burgess hac not visited there nor did he possess a pcoss pernivting him access to ALC headquarters, (woe \ ‘, / ACTIONS For your information, vs