We actually do not intentionally censor any news results, meaning media outlets are not being removed or their stories displayed so far down in the results they are effectively removed. That is, unless legally prohibited, you should find all media outlets in our results, and they should generally show on top if you search for them by name or domain name. If you are seeing otherwise, please me know and we will investigate.
A search engine's primary job is to rank results, trying to put results that most quickly and accurately answer the query on top. We do this ranking in a strictly non-partisan manner. Ranking for news-related searches is particularly difficult because for most news stories there are often hundreds of media outlets covering the same story, many with similar relevancy in terms of keyword matching and popularity. As such, we look to another ranking factor to ensure just the top of the results aren't taken by obviously very low-quality news results so that users have more sources of relevant, high-quality news results to compare and choose between.
The non-partisan factor we've found to help accomplish this is a rare, but well-documented history of a site's complete lack of news reporting standards, such as routinely using spam or clickbait to artificially inflate traffic, consistently publishing stories without citing sources, censoring stories due to operating with very limited press freedom, or misleading readers about who owns, funds, and authors stories for the site. And since we do not censor sites, even state-sponsored media in countries with very limited press freedom, these sites will still show up in results, and even on top like when you search for them directly.