My suspicion is that it has to do with the way Facebook filters by privacy after they've selected your results. Meaning graph asks for (X) results, Facebook finds (X) results that match your search, then removes those who have it in their privacy options not me be searched, and then after filtering returns what's left. This is explained on Facebook's dev blog: developers.facebook.com/blog/post/478.
We've been getting empty results for type=post for periods of 1-2 hours for the past few days. I'm sure it's related to something on their end, check out my bug post here developers.facebook.com/bugs/45691030101....
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.