I am using Java FB API for my FB Connect APP. I think the trick is the same for PHP.
I didn't really find a good solution to this problem. In my case I just wait until the session times out, when it does the user has to log in a second time and I can capture the offline_access key.
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.