The Enemy may be another country, another person, a virus, or a social phenomenon. On the theme of The Enemy: an interview with Harvard science historian Peter Galison on cybernetics pioneer Norbert Weiner and his WWII-era research into anti-aircraft weaponry, which led directly to his theories of cybernetics; an interview with Wolfgang Schivelbusch, author of The Culture of Defeat, on the effects of crushing military loss on...