https://declassified.library.utoronto.ca/files/original/b3832da85e05c13e9fe24272e2ea43a4.pdf 84e0de20a929eae3deaf41c87a5205f4 PDF Text Text Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi iErfdbas a I'information # \Mg? Y 3 ? :J ;M^ COPY . . . V / ; . . ,,,!&Y \ <5 *••> OF 19 FM WASHD SEP! 8 / 5 9 -Jfi^SEC *: FEB 2^ * TO EXTERNAL 2 2 3 8 INFO TT CCOS FM OTT EXCHANGE OF NOTE COVERING OVERFLIGHT OF CDN TERRITORY BY USAF INTERCEPTERS ARMED WITH NUCLEAR AIR-TO-AIR DEFENCE WEAPONS THE STATE DEPT HAS WRITTEN TO US INFORMING US THAT THE USA DEPT OF DEFENCE HAS SUGGESTED THAT THIS EXCHANGE OF NOTES DATED JUN30 BE DOWNGRADED FROM TOPSEC TO SECRET.WE HAVE BEEN ASKED WHETHER THIS SUGGESTION WOULD BE ACCEPTABLE TO THE CDN GOVT. IF SO„ IT I S SUGGESTED THAT WE COULD ARRANGE TO HAVE THE NOTES DOWNGRADED TO SECRET AT A MUTUALLY ACCEPTABLE DATE. 2 . WE ASKED PARKERCCDN DESK), THE AUTHOR, OF THE LET, WHAT THE SIGNIFICANCE. OF THE DOWNGRADING WAS.HE SAID THE REASON FOR THE REQUEST WAS PURELY TO FACILITATE TH£HANDLING OF THE AGREEMENT WITHIN THE USA GOVT— A TOPSEC DOCUMENT WAS A CWBERSCHE ONE TO HANDLE.PARKER RECALLED THAT THE ORIGINAL AGREEMENT HAD BEEN CLASSIFIED SECRET.HE ACKNOWLEDGED THAT THE USA DRAFT OF THE NEW AGREEMENT HAD BEEN CLASSIFIED TOPSEC AND RECALLED THAT HE HAD SUGGESTED TO THE USA DEPT OF DEFENCE AT THE TIME THAT IT MIGHT BE PREFERABLE TO CLASSIFY THE DOCUMENT SECRET. IN ANY EVENT,THE USA AUTHORITIES ARE NOW AGREED THAT FROM THEIR POINT OF VIEW THIS I S DESIRABLE.MAY WE HAVE YOUR INSTRUCTIONS IN DUE COURSE. 001038 � 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 CDNW16506 Title A name given to the resource CDNW16506 Source A related resource from which the described resource is derived "Continental defence - Atomic capability," RG25-A-3-b, vol 5930, file 50210-F-40, part 4.2, Library and Archives Canada (LAC).