Mainly the foxnews.com and breitbart.com being in the top 15 (top 10 if you count all the Pinterest domains as one) in the Block list. As a non-American, I hardly ever see these in my search results, and wouldn't have felt a need for a Block filter for them.
And while there's some British news presence (Guardian and Daily Mail), and what seems to be a Chinese one (kknews.cc), American news media is the one with the heaviest presence (CNN, NY Post, NY Times, etc.).
And while there's some British news presence (Guardian and Daily Mail), and what seems to be a Chinese one (kknews.cc), American news media is the one with the heaviest presence (CNN, NY Post, NY Times, etc.).