What was the fairness doctrine and how did it relate to the concept of quid pro quo (this for that). What exactly was it exchanging with the federal government and what obligations did the licensee assume?

The fairness doctrine of the United States Federal Communications Commission (FCC), introduced in 1949, was a policy that required the holders of broadcast licenses to both present controversial issues of public importance and to do so in a manner that was honest, equitable, and balanced.

What is the questionm