18 DASA 2019-2 nuc.ear explosives by people that don't need to identify themselves to have their purposes served. The reason [ think this is extremely important, and even has some bearing on our meeting here, is that one way in which deterrence—which I think all of us would agree has produced the stability that has existed since 1945 with respect to general nuclear war—might fail is that the attacker be unknown. soon as the attacker is not known, As the whole concept of deterrence disappears. One wayfor attacker not to be knuwn is for the attack to be based on purposes that are well served if the attacker doesn't have to identify himself. [have followed to some extent in the footsteps of Fritz Awicky in using what are called morphological outlines to try to sum up the number of ways in which a threat might be made without the threatening organization being identified, and my outline at the moment is capable of generating 1035 possibilities. So I'm somewhat dismayed about any notion of control that requires understanding all of the things that people might do. I think we have to understand what the end effecta may mean, I think this is part of what this conference is about, and [ think we also have to find a way to keep the basic material out of the hands of people who could use it for their own purposes, That's what I'm upto, AYRES: I would be delighted to pass up my opportunity to talk and hear you explain this factor of 1035, TAYLOR: Well, that can be done at some point. Do you want me to explain it now’ AYRES: Maybe not. Myname is Robert Ayres. { suppose I ought to start at the beginning. [thought of starting at the end. I studied mathematics and physics despite the fact that Ican't multiply. I spent several years jumping from university to private industry and back to university. I went to the Hudson Institute in 1962 and spent four years there spending most of that time worrying about longerange effects of nuclear war. This was work supported by the Office of Civilian Defense. Parenthetically, I might add that the only reason I knew about this proposed series of conferences and, as far as { know, the only inforrniation that DASA had about the OCD (Office of Civil Defense), came