https://declassified.library.utoronto.ca/files/original/939de7063f5d6d253d19e3539253a5e9.pdf 5360f35b340095e4eecee80cb2002312 PDF Text Text Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information INCOMING MESSAGE COPY Security Classification FROM: THE CAHADIAH AMBASSADOR TO THE UNITED STATES SECRET File No. ^Sjl/J/? -_J) -ro TO: THE SECRETARY OF STATE FOR EXTERNAL AFFAIRS, CANADA ^ Priority P0L/C0^0RD«H SECTXOW Done- «* System CYPHER-AUTO Departmental Circulation MINISTER UNDER/SEC D/UNDER/SEC A/UNDER/SEC'S > No. WA-1199 Date May 1 5 , 1 9 5 3 , Reference: Subject: Atomic Energy 1. The State Department, through Gordon Arneson, have Invited Canadian participation, with United Kingdom representatives, in an informal study of the application of physical security standards in United States atomic energy projects at the end of this month. This visit is a follow-up to the series of tripartite conferences on security standards, the latest of whioh was held in Washington on May 15-16, 1952 (see our letter Ho. 2085 of September 27 i I952, forwarding the final report). It is also intended to reciprocate the informal visit by United States security officials to the United Kingdom atomic energy projects last December, in which apparently Canadian representatives did not participate, although they were invited. Arneson explained that a letter inviting Canadian participation had been sent direct to Dr. C.J. MacKenzie by the Chairman-df the United States A.E.C., Gordon Dean. Date—. References 2. The* United Kingdom representatives, Messrs. W.D. Wilkinson, and C.S. Goad,of the Ministry of Supply, are due to arrive in Washington on May 29th. After a day or two of talks in Washington it is intended that the group should visit Oak Ridge, the Argonno National Laboratories, and Hanford. 3. Ho doubt Dr. MacKenzie will be making a reply direct to Mr. Dean; we should like, however, to be informed whether any Canadian representatives are going to participate. ^ Done. Date000057 Ext. 230 (rev. 3/52) � Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context CDNW02192 Title A name given to the resource Message from the Canadian Ambassador to the United States to the Secretary of State for External Affairs Canada Date A point or period of time associated with an event in the lifecycle of the resource 5/15/1953 Source A related resource from which the described resource is derived "United Kingdom-United States-Canada - Security arrangements re." RG25-A-3-b, vol. 5956, 50219-AB-40, part 1, Library and Archives Canada (LAC). Creator An entity primarily responsible for making the resource Department of External Affairs Rights Information about rights held in and over the resource Canadian Crown Subject The topic of the resource Atomic energy, tripartite cooperation Description An account of the resource Atomic Energy: Invitation for Candian participation in an informal study of the application of physical security standards in the US Publisher An entity responsible for making the resource available Canada Declassified Type The nature or genre of the resource Text Format The file format, physical medium, or dimensions of the resource PDF Language A language of the resource en