This sounds morbidly like a multiviews issue. Multiviews is a content-negotiation thing where if it's turned on, it'll try a few different extra things in the URL-file mapping pipeline to try to find a file that maps to a URL. Here you have a URL like products/blah yet, you have a file called products.
Php so multiviews might try to map products to products. Php/blah . Thus bypassing the rewrite rule entirely, and you don't see the category parameter.
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.