I'm not sure how well Zend_Cache handles an all binary input & output, but Zend_Cache_Frontend_Page or maybe the Zend_Cache_Frontend_Output appear to be the best matches. They will take the URL, GET & POST variables, and if all match to a previously generated cache, output that. If there is no cache with that input data, they will cache the generated output for next time.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.