Privéoy¥ AQT MAPEMUPhen
‘
oo
5 *
X
HRADOUARSERS..
APO 187, c/o Postmaster.
-
San Francisco, California
SUBJECT? «Security Letter:
Po a
TO,
win So. ee - get Sole
" TASK GROUP 7,4, PROVISIONAL
oe
\
.
7
.
|
;
Rode
oy
.
Avy
5 March 1954 0
Cs
oO
“
fase
my ea
Au Personnel
1.
Information concern
the detonation of the first ina serles of -
tests 1s classified CONFIDENTIAL, except for that which has been officially
announced in the two (2) AEC releases, dated 9 January 1954 and 1 Marcha» 1954
as quoted below:
1st Release - 9 January 1954
"During this month men and material will begin moving to the
Pacific Proving Grounds of the Atomie Energy Commission to carry out
a further phase of a continuing series of weapons tests of all
categories, These tests are part of the Atomic Energy Commission
2
research program for the improvement of weapons, pursuant to
—
so
its responsibility under the AEC Act, These tests will be conducted .
by Joint Task Force Seven (JIF 7), commanded by.
I
US officials.
_
1, USA, There will be no observers other, than
Pape » SILIIE PK,
2ndq Release - 1] March 1954
"Louis E, Strauss, Chairman of the United States Atomic Energy
Commission announced today that Joint Task Force SEVEN has detonated
an atomic device at the Atomic Energy Commission's Pacific Proving
Grounds in the Marshall Islands, This detonation was the first in a
series of tests,"
2.
The fact that an official release was made regarding the "First
detonation in a series of tests," autamtically downgrades that portion
of informtion to unclassified,
HOWEVER, it is desired that no reference
be made to this first detonation in letters home.
3,~—Let the folks back home gain their information through the
newspapers, radio and TV, regarding our work here in the Pacific Proving
Grounds. By doing this, there is no possibility of you becoming involved in a security leak through misinterpretation of what is classified
and what is not classified,
BY ORDER OF THE COMMANDER,
_ TAB NO. 27