◆ SpookStack

. 1 5 Many Ju wg vases ae, mr Aires AE EN. seers e e Th Aen Bole wo, 64 - e ons ¥ aes nC rd a ogee &, . - * - . ’ og FPS That ee * “~ cle eee cance wey aaa ia + pe! Peres pain 44 en ees ot an wan | V jy tce Meme ind “UNITED ‘STa BS GOVERNMENT os ieee hi ae ate ~ : a eee of - ee BS ee | al FROM, t L. 8. a “hee. oo pts ee - L m ee elem, iij- feel” * SUBJECT: POWALD Da mac LEAN | ra idee fee “EELS ata y = Laie ee SRM ES ET Oe Fae alts ome. Saige aes BE et tam Borden, ezeoutive “étrector ‘of ‘the Jotat Con- > wtttee on Atomic Energy, advised me confidentially that tn the early day# of the Mmhattan Engineering District there was a combined poltcy conmittes represented by tadividuals designated Same by the British, Canadian ond UV, S. governaents. This countttee had the responatbility of ftzing allocattons of urantur ores, otng tnto the joint acttuities af the Manhattan Engineering — _ istrict and subsequently of passing upon and handling the ez-_ a, aw change of technical tnformation, fhe conbined poltcy comatttee My had a secretariat composed of one representative of each of the ce. _ three countries, From April 1947 until July 1948, "AR r) the British member of the secretariat. ee 4s auch, Maclean hod i Ge $0 ted. _faforma stan . on L& ollocation_af—arss > q tonic prs he. eof tec wy nteal 80 attended he tre¢ declassification ~~ ; conferenc in 1947 geo a vis «far F¥Yaus Fuckay eae 5 ee ml lO ca OT, wis e~the Britten sfedsents. moa _ Borden told me that the Joint Comnittee had requested oO “ie AEC to prepare an estimate of how much knowledge MacLean covid =~ - - + }have hed. He aleo-told me sonfidentially that one scientist — ( tetinately assoctated with the atonic preject has stated that tf MelLean were © spy turing the days when he was connected with ..- . the secretartat he could have had access to considerable ta- wes formation; however, the matter te now problemstical a8 to how. - as ygmues MacLean had inasmuch as he was not a technical man, . i, - Bett The thought occurs to_me thot tt night be well.for .. rpas our Jtatson to make o routine tnguiry_ot the Atomic Energy: - - onSor ony information they might have of any gtoRto tnformation whitch was mode avatiabdle to Maclean. . _, 2 thanked Borden for the “som . - a mitt /S eee ee As ** -s2-+ . | —_— + s 5 Ff : tL, Ce YR hin ow O14 ot ohn shee angen teens me re! ee ye en re ee tea a ri ee eo Ce . 7 eee ee tees we ett ae - EK, Soea_» seme ao - : a wots