Martin Fleischmann worried about the possibility the cold fusion might be used for a weapon. He discussed that in his letters with Miles. The discussion is spread out over many letters. See p. 11, p. 430, and look for "D.U.":
http://lenr-canr.org/acrobat/Fleischmanlettersfroa.pdf Martin told me that Edward Teller also worried that cold fusion might be used as a weapon. I cannot judge whether cold fusion might be weaponized, but I am sure it will revolutionize every aspect of conventional weapons, just as steam engines revolutionized naval weapons in the 19th century. Without steam, you could not have ironclad warships with large, modern cannons. They would be too heavy. (Granted, there were lighter steel-hulled sailing ships in the late 19th and early 20th century.) - Jed
