Yes, you can re-use a BackgroundWorker - but you can only use it once at any time - not concurrently. If the operations are different, however, I'd use a separate worker. Otherwise you'll have to unhook the events, hook the correct events, etc. Messy.
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.