-~7-
I hope that I have provided cnough information to
dexonstrate that the risk from nuclear testing at the present
rate is small. Of course, a great amount of more detailed
information is available, and I shall be glad to supply it
to you if you wish. No scientist contends that there is no
risk. We accept risk as payment for our pleasures, our comforts, and our material progress. Here the choice seems
much clearer-~the terrible risk of abandoning the defense
effort which is so essential under present conditions to
the survival of the Free World against the small controlled
risk from weapons testing.
Sincerely yours,
~~
No
Ar
wn
/s/ W. F. Libby
Department of Energy
Histerian’s A's
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