I don't know how Chrome extentions access the clipboard so I imagine you have clipboard string in clipboard variable. Then you can read selected text in the browser by window. GetSelection function.
Something like this I use in my extension here: github.com/horejsek/specialCharacters. I hope that's help.
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.