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Problems of Prudence: Nuclear Explosives, Biotechnology and Global Warming

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I want to begin with what I hope will be disarming candor. As it happened, I chose the topic and title of this lecture before I learned that distinguished scholars are encouraged to show pictures, tell funny stories and be generally entertaining. I do genuinely endorse that aspiration, but clearly my topic was not a good choice for such a purpose. I have to doubt my own ability, or anyone else’s actually, to make it either amusing or inspiring. I hope instead to encourage constructive thoughts on some difficult, admittedly dreary but ultimately unavoidable questions of international security policy. 


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