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UNITED STATES
ATOMIC ENERGY COMMISSION
WASHINGTON 25, DC,
Mareh 17, 1958
MEMORANDUM for the Chairman,
Subject:
Operations Coordinating Board
"CLEAN WEAPON" DEMONSTRATION AT ENIWETOK FOR U.K.
PRESS OBSERVERS
AND
The U.S. has made several public announcements and statements indicating that an international group of scientific
observers will be invited to observe a "clean" shot during the >
forthcoming Pacific test series.
Copies of the more important
of these announcements are attached.
The Commission believes it would te possible to conduct -
such a demonstration and be reasonably convincing to a
technically competent, unbiased observer. The Commission believes
that some information hitherto considered classified would have
to be declassified but that this should not involve declassification of important design information.
Any feasible demonstra-
tion will, however, be susceptible to claims of "fraud" by
observers who do not desire to be convinced or who desire.to-.State that they. are-unconvinced. forpropaganda reasons
7
-Weatherdelays of-a-fTew’ days may ber
“expectédafter-the-firing is ready before satisfactory weather
conditions occur.
The shot will extend the duration of the
series, including the retention of the danger area, by
approximately 3 weeks.
Because there is a possibility, though
small, that the device would not fire properly, a back-up
device of similar design would be readied.
In order to prevent interference with the scheduled test
operation and to provide the necessary time for preparation,
this demonstration shot should occur about 3 weeks after firing
of the last presently scheduled shot of the test series.
In
prief outline, the proposed demonstration would consist of the
following: .
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