Robinson implies that on a national scale changes in coverage tend to mold public interest rather than vice versa. If so, journalists must be especially cognizant of their influence on not only opinions about the news, but also on what is considered newsworthy to begin with. Responsible editors and reporters like to think they do not pander to people’s basest interests, but rather guide and educate them. So perhaps the more pressing question is not, how have preferences changed, but rather to what degree and how quickly does content influence those preferences? Does a diet of more junk food create an appetite for more junk? Does a healthy diet create the reverse?


And if an outlet such as CNN chooses to even temporarily woo a niche audience for the sake of ratings - by chasing the Anna Nicole Smith story, for example - what is sacrificed with regard to the national audience? Hopefully, reports such as the Robinson’s study will help guide journalists as they try to find answers.

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