ANNEX E TO TASK GROUP 7.5 OPERATICN PLAN
Security and Public information
a.
The security and public information policies of Task Group 7.5 have
been set forth in several memoranda end other documents, some originated by Headyuerters, JIr SEVEN, and some by Headquarters, Task
Group 7.5, as follows:
(1)
The individual basic responsibility of all personnel of Task
Groups 7.5 and 7.1 was emphasized by the issuernce to all such
personnel, including Holmes & Narver, of Headquarters, JIF SEVEN Security Memorandum No. 2, dated August 15, 1953, which outlined the basic security responsibility of all participants in
JTF SEVEN end which required each recipient thereof to success-~-
fully complete an "open beok" type examination.
(2)
For further security indoctrinetion of Task Group 7.5 and Task
Group 7.1 personnel, a comprehensive security letter, subject:
"Task Groups 7.1 and 7.5 Security Indoctrination” was issued
under date of November 27, 1953, and has been distributed to
each individual member of Task Group 7.5 (including supervisory
personnel of Holmes & Narver down through the rank of Assistant
Superintendent in the field and equivalent positions in the
Home Office) and to all personnel of Task Group 7.1.
This let-
ter was issued in lieu of JTF SEVEN Security Memorandum No. 3,
dated August 15, 1953.
(3)
Upon arrival at the Pacific Proving Grounds, all personnel of
Task Group 7.1 and Tesk Group 7.5 will receive a written security lecture, prepared oy E-2, TG 7.5, which explains the functions of the Castle security badge system, emphasizes voluntary
mail censorship, with examples of items not to be included in
personal correspondence, and provides other details of the io-
cally applicable security program.
The execution of a certifi-
cate is required by each recipient of this security lecture.
4)
Upon departure from the Pecific Proving Grounds during or after
completion of Castle, each member of Task Groups 7.1 and 7.5
will read and sign a departure security briefing which will set
forth the policy pertaining to discussion of the Castle operation after departure from the Pacific Proving Grounds.
5)
The public information policy affecting personnel of Task Groups
7.1 and 7.5 is set forth in TIF SEVEN operation Order 3-52, An-
Special Rereview
Fiftal
Determirfation
nex C-6, paragraph 19, which in effect prohibits personnel of
JIF SEVEN from releasing any information for publication as such
releases will originate only in AEC or DOD. The public information policy associated with Castle issued by SFOO is set forth
in Office of the Manager Announcement No. 28, dated September 23,
1953.
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