One of the ways the media manifests its bias is with the language it uses to talk about certain things. There's a style we'll call the "language of scandal," and reporters using this language will tell you, for instance, that they have "obtained internal memos," or that that certain things have been "learned" from sources who wish not to be named. It's designed to make you think that what you're about to be told is sinister and objectionable, as evidenced by the clandestine manner in which the information was obtained.
Another element of this is the presentation of certain information as remarkable when it really isn't. If I tell a CEO called a company meeting to review sales figures, you'd say, "So what?" That's no big deal. But if I ran a story on the front page and talked about this like it was an astonishing revelation, you might wonder whether something is amiss - not as a result of the information itself, but as a result of the way it's presented.