As you know by now, Nancy Pelosi is a vile, loathsome wretch! So far her tentacles can reach only so far before conservatives in Congress step on them, after which she shrieks and yanks them back. This applies to the reprehensible "Fairness Doctrine" which she supports. Basically it states that the public airwaves(radio) belong to the public, and if a political opinion is expressed, then the opposing view may demand equal time to rebutt that opinion.
The reason liberals like the Fairness Doctrine is that it would in effect silence conservative talk radio. They know that instead of broadcasting liberal dogma that nobody listens to in response to Rush or Hannity or Boortz, radio stations would just change their format to Latin Salsa music and get out of the talk business. You see, liberals cannot compete in the fair arena of ideas. Nobody will listen to it and no advertizers will support the shows. This is why Air America went bankrupt almost before it went on the air.
But the democrats are expected to increase their majorities in both Houses of Congress such that a Fairness Doctrine bill would sail through. If the Obamessiah gets elected savior of America, he'll surely sign it into law, and you can forget listening to Rush Limbaugh or any other conservatives on AM radio.