The app is damaged and can’t be opened. Delete the app and download it again from the App Store?

A return code of 137 means the store receipt validation fails.

The real way to get a new receipt for a new version is to follow instructions from this link: http://www.kotancode.com/2011/10/10/appstore-receipts-osx-lion.

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.