BASIC ASSUMPTIONS FOR OSO AND CIA PLANNING PURPOSES

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP83-00764R000600100038-5
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 22, 2016
• Document Release Date: April 10, 2012
• Sequence Number: 38
• Publication Date: February 24, 1951
• Content Type: MF

Declassified in Part - Sanitized Copy Approved for Release 2012/04/10: CIA-RDP83-00764R000600100038-5
Bu3C Ae tt a for 0So and CIA Plwming
parimes
OAD/NE
Distribution:
Cyss 1.20 3 to AD/SO w/attachment
oy-s ) and 5 - AD/NE
t -2
Declassified in Part - Sanitized Copy Approved for Release 2012/04/10: CIA-RDP83-00764R000600100038-5 b
 Declassified in Part - Sanitized Copy Approved for Release 2012/04/10: CIA-RDP83-00764R000600100038-5
Iq
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 Declassified in Part - Sanitized Copy Approved for Release 2012/04/10: CIA-RDP83-00764R000600100038-5
M 4OR.&NWM FOR THE DEPUTY DIR IC?OR, PLANS
SUB CT s tic Aseumptionis for OSO and CIA PLANNING
PURPOSES
Meaoranduax from 1)1)/P, dated 26 February 3,951
to AD/NE, same subject
I. O/ ? Cdr a "t$ on O/SO Basic
wax d to the AD/SO on 24 bwmary 1951. A copy of these
cozeaents is attached hereto. It was the opinion of the
Board of National Estimates that 0/80 and, for that mat
Off' were entirely justified in basing their assumptions
on the worst possible continVoncies. Obviously,, this cannot
be the basis on which National Intelligence ! et' tes are
built. For that reason, it ds>es not appear that the Basic
Aaaumptions for 0/SO and O/PC operations need necessarily
pond with the a sption s made for NIF s e
2, 0/1 is ready at all tilts to give such advice and
aid to 0/S0 and 0/PC as may be required or possible. I
should be glad to confer with you and the AD/SO and AD/
to you convrsn ent,
LANOER
Director
Attachments - 4
Copy #4 of 53194,t dtd 2te Feb 1951
Copy #3 of 5615-a
Copy #1 of 56146
Copy #27 of 47769
ILLEGIB
ILLEGIB
Declassified in Part - Sanitized Copy Approved for Release 2012/04/10: CIA-RDP83-00764R000600100038-5
 Declassified in Part - Sanitized Copy Approved for Release 2012/04/10: CIA-RDP83-00764R000600100038-5
MEMORANDUM FOR: Assistant Director, Office of National Estimates
(Dr. Langer)
FROM : Deputy Director, Plans
SUBJECT : Basic Assumptions for OSO and CIA Planning
Purposes
1. I have been reviewing the AD/SO memorandum to you of
14 February 1951, together with the attached papers from OSC
entitled "Basic Assumptions."
2. ivy first question is, how far are the assumptions in line
with National Estimates; and second, whether an office such as 030
(and possibly OPC for that matter) -hould proceed on the basis of
the same assumptions as those which underlie National Estimates.
3. National Policy presumably must be predicated on probabilities.
Emergency planning in offices such as OSO and OPC may be based upon the
possibilities, even though somewhat remote, so that we are not caught
out in the event that the improbable happens. Your views and guidance
on these papers would be appreciated. Possibly a conference between
us would be useful at which I should be able to have AD/SO and AD/PC
present,
cc - AD/SO
Attachments (3)
Memo frm AD/SO to AD/ONE dtd 14 Feb 51 (TS 56145-a)
Paper frm OSO entitled 'BBasic Assumptions/3" dtd 10 Feb 51 (TS 56146)
Memo frm Chief, Staff B to Staff Chiefs, Division Chiefs and
Chiefs ICS, TRD, BLC dtd 12 Jan 51 entitled "Draft of Basic
Assumptions" (TS 47769)
TOP SECIET
26 February 1951
TS#43668
CS G -753
TOP SECRET
Copy (of .3 Copies
Declassified in Part - Sanitized Copy Approved for Release 2012/04/10: CIA-RDP83-00764R000600100038-5