You are going to need to wrap you flipChar in an NSNumber to pass it as a reference properly. When using selectors you can not pass primitive types directly.
The problem you are having does not have to do with your characterReaction:data: method, but rather, with the actionWithTarget:selector:data method.
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.