Use Fiddler, after clearing your cache . It'll show everything that your web browser fetches from the remote site. Look for anything that's not https.
As it turns out it has nothing to do with nonsecure traffic per se, but with a hack that one of the HTML boys did --- they have an empty iframe (without a source) that they place on the page, so they can then do some placed content on top of that --- gut the iframe out of the code and the warning dialog box went away. IE7/8 and FF doesn't do it.
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.