Fox (and other news channels) in most instances, merely picks up what the print media reports -- especially if it's the New York Post, "owned by the parent company" of FNC. Seriously, if you listen closely, especially to the early morning shows, they will base most of their commentary on reports from the NY Times, Washington Post, and the various wire services. Unfortunately, such reporting doesn't indicate that they (Fox) have any information to corroborate or disprove the newsprint stories.
I frequently listen to Fox in the morning, making a mental note of their citations to read the sources later in the day, since the broadcast media is by its nature superficial, and obviously geared to a short- attention-span audience.