There is no "compelling reason to reinstate the Fairness Doctrine," the head of the Federal Communications Commission said in a letter to lawmakers this week. Chairman Kevin J. Martin, responding to a letter from several House Republicans on the modern-day appropriateness of the rule, assured them that the media regulator has no intention of bringing back the doctrine, which required broadcasters to present contrasting points of view on issues of public importance. "In my judgment, the events of the last two decades have confirmed the wisdom of the commission's decision to abolish the Fairness Doctrine," wrote Mr. Martin, a Republican,...