Spy vs Spy

The title? 

Mirror images of destruction

For those who don't know it comes from the old MAD comic and in the strip the White spy and Black spy are constantly locked in an interminable battle to destroy each other. Neither wins, no one really loses.  I think back in the day it might have been a commentary on super powers but for me it can also be a metaphor for an internal struggle or illustrates the rather pointless nature of control through the original Mutually Assured Destruction [MAD geddit] policies of the recent past.  Or the pointlessness of Catholic vs Protestant, Shia vs Sunni and so on.  

Its also an aggressive Yin/Yang, action/reaction meme too. Whereas in the Yin-Yang 'wheel' the forces are harmoniously locked the Spy Vs idea is closer to the self perpetuating blood feuds of two evenly matched hillbilly dynasties.