It is definitely hard to do something like that. But just for some context, there some sites that are focused on only one subject.

http://www.niemanlab.org/2013/01/lara-setrakian-single-story... http://www.syriadeeply.org/ http://www.arcticdeeply.org/

Some research of the topic: http://towcenter.org/research/seeking-the-single-subject-new...

And another piece of journalism that could be explored and investigated as repercussions in other areas. http://www.bloomberg.com/news/articles/2015-07-06/u-s-sided-...