I had a number of problems with xcode 4 and my unit test suites as well.
DougW is correct, that I'm doing things in my +initialize method that probably shouldn't be in there. In any case, I wasn't ready to refactor that only so my unit tests would run.
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.