Sen. Dianne Feinstein, D-Calif., caused a stir recently when she criticized talk radio for its role in stopping the immigration bill. Talk radio, she lectured, "pushes people to ... extreme views without a lot of information."

Feinstein then went on to suggest that it might be time to bring back the Fairness Doctrine, repealed in 1987, that mandated private radio stations devote time to all points of view during discussion of controversial topics.

Unfortunately, Feinstein chose Orwellian logic to make her point: "I remember when there was a Fairness Doctrine, and I think there was much more serious, correct reporting to people."

One wonders what Feinstein meant by "correct." Correct to whom? Democratic senators, a government auditor or New York Times editors? Aside from the central issue of stifling free speech, there are a number of things wrong with Sen. Feinstein's desire to have the government arbitrate what is "fair" and "correct" on your car radio.

Talk radio is as much entertainment as political opinion. It lives or dies by ratings. Those who master the genre — with off-the-wall jokes, mimicry, satire and bombast — prosper. Those who can't, don't.

Had liberal talk show hosts of the past, like an Al Franken, Jerry Brown or Mario Cuomo, won far more listeners than Rush Limbaugh, one suspects that Sen. Feinstein would see little need for new laws. And we would probably now be spared the present sour-grapes cries about fairness.

The government is already in the broadcasting business with National Public Radio and the Public Broadcasting Service. Despite conservative whining about the left-wing biases of these two institutions, fortunately no one has succeeded in having their broadcasts monitored or in demanding equal time on them for all views.

More importantly, for reasons that are not entirely clear, liberals and conservatives tend to excel in different genres of American media. Most successful political radio talk shows are in fact conservative. On the other hand, humorous political TV spoofs, like Jon Stewart's "The Daily Show," Bill Maher's "Real Time" or "The Colbert Report," tend to have a liberal bias.

Similarly, the major networks — CBS, NBC and ABC — are liberal bastions. So are most of our motion pictures and documentaries. The most prestigious and oldest grant-giving foundations — Rockefeller, Ford, MacArthur and Guggenheim — are liberal leaning. Likewise are the majority of universities, from the most prestigious, like Harvard, to the largest, such as the California State University system.

Yet, do we want a counter-editorial to everything a Katie Couric chooses to present as news? Or should we demand that Republicans match Democratic numbers on college faculties, or as graduation speakers and grant recipients? Should conservatives be provided an equal-time trailer at the end of "Fahrenheit 9/11" or "Syriana"?

The truth is that savvy Americans navigate well enough on their own through our various partisan genres. Liberals flip through The New York Times, tune into NPR, and rave about a movie or documentary damning the Iraq war. Conservatives call into Rush or Hannity, check blogs for their news and watch Bill O'Reilly on cable.

There is a sort of irony in the debate over talk radio. Of all our media, it is perhaps the most populist. A radio host requires neither a journalism degree nor political connections. He just needs sheer talent. The unforgiving market — judged by how many turn the dial to your show or call in with questions — alone adjudicates success. Liberals who profess affinity for the little guy should welcome this prairie-fire revolt against the more high-brow New York Times, CBS News or NPR.

Finally, is the new politicking on radio any different from what goes on, in subtler fashion, elsewhere? Liberal media do not consider themselves biased, since selecting what story appears on the front page or leads the evening network news is far more nuanced partisanship than Michael Savage screaming about the latest liberal transgression.

Yet that does not mean that Walter Cronkite's famous on-air declaration that the Vietnam War could not be won was any less political. Or how about Dan Rather's pre-election assurances that a forged memo about George Bush's National Guard service was authentic?

Rather than promoting government audit of our opinion media, liberals should master talk radio and cable news. And conservatives should work harder at providing counter-voices in Hollywood, on the campuses, and amid the major networks and newspapers.

Then let the best men and women win in the free arena of ideas and entertainment.

Victor Davis Hanson is a classicist and historian at the Hoover Institution at Stanford University. Reach him at author@victorhanson.com.