U.S. Broadcasting Policy
The policy of the United States Federal Communications Commission that became known as the "Fairness Doctrine" is an attempt to ensure that all coverage of controversial issues by a broadcast station be balanced and fair. The FCC took the view, in 1949, that station licensees were "public trustees," and as such had an obligation to afford reasonable opportunity for discussion of contrasting points of view on controversial issues of public importance. The Commission later held that stations were also obligated to actively seek out issues of importance to their community and air programming that addressed those issues. With the deregulation sweep of the Reagan Administration during the 1980s, the Commission dissolved the fairness doctrine.
Hat tip to Scream to be Green - I just discovered this morning after Jason left a comment at Crunchy Chicken.