I don't see anything obviously wrong with the code you posted. Try enabling the NSZombieEnabled environment variable . This prevents objects from being released so that when your application "crashes" you can determine which object caused the problem.
EXC_BAD_ACCESS* is a sure sign that one of your objects is getting over released (or wasn't retained properly). NSZombieEnabled is your friend here, just as titaniumdecoy suggests - figuring out what object is being over released is half the battle. Just be sure to turn it off before releasing the app, because (as titaniumdecoy pointed out) it prevents objects from getting released.
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.