Here's an approach that I think is quite simple. It's a combination of approaches that I've observed on this site. I wrote a blog post about it: http://yoyar.com/blog/2012/06/dealing-with-the-spring-security-ajax-session-timeout-problem.
Take a look at http://forum.springsource.org/showthread.php?t=95881, I think the proposed solution is much clearer than other answers here.
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.