FOSUserBundle is not to provide authentication of users but to manage users. The bundle provides you a better structure to manage users for your application. If you take a look at the code you will find controllers that are used for the default registration and other user activities.
Yes it can be doable. But it will be a complex procedure. You can do following (I havn't tried myself though :) ).
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.