Twelve years ago, Bryant Gumbel called me an (expletive) idiot on CBS’s “The Early Show” for defending the Boy Scouts after the U.S. Supreme Court affirmed their right to uphold moral standards for leaders and members. Whether or not you agree with his unvarnished assessment, I’d like to think that most people would think he crossed a line. Though he was caught on camera saying it, CBS denied it. Years later, Mr. Gumbel himself smugly confirmed it. This is what liberals mean when they lecture us about keeping a civil tone. A couple of weeks ago, on July 17, the...