Email is written on User creation. Maybe you are trying to access users that were created when you didn't have email permission, therefore the written email was None. Does the problem appear also for new User object?
Just gave up using facebook.py and facebookoauth.py and made my own OAuth 2 client using urlfetch. See 'Authenticating Users in a Web Application' in Facebook docs.
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.