PHYSiaANS FOR SOCIAL RESPONSIBILITY 
639 Massachusetts Avenue, Cambridge, MA 02139, (617) 491-2754 
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HELEN CALDICOTT, M B., B.S. 
President 
July 7, 1982 
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Dr. William Gartland, Jr. 
Director 
Office of Recombinant DNA Activities 
Building 31, Room 4A52 
National Institutes of Health 
Bethesda, MD 20205 
Oeau: Dr. Gartland: 
It has been brought to my notice that the military is 
considering using recombinant DNA technology for combative 
purposes. I find this aibsolutely repugnant and I think 
this was the worry of all the scientists who were concerned 
initially about DNA recombination. 
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I therefore recomnend that the proposed amendment to the 
NIH guidelines Section I-D should be included. I enclose 
the amendment as follows. 
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Yours sincerely, 
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Helen Caldicott, M.B., B.S. 
President 
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