In webinvoke you can add "RequestFormat=WebMessageFormat. Json, ResponseFormat=WebMessageFormat. Json" try it.
If you have implemented IErrorHandler and associated it to service using using custom behavior inherited from WebHttpBehavior as sighted by link then perhaps you should try adding default request/response format etc. For example.
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.