If you're just reading headlines (from any news source), then you're likely misinforming yourself. Headlines are advertisements, not summaries of the articles, and are frequently misleading. At the very least, keep in mind that the headlines are not written by the article's author(s), they're written by editors whose only goal is to get you to read the article.
Yes, and looking at the source of the headline tells me a lot about the type of editors they do or do not have which does not change my original statement that I don't bother reading certain sites. Sure, I said their leaning, but that's not the only thing that is used. But that wasn't really germane to the conversation, but now you've changed the topic.