Why is it that the press likes to report some misstatements by politicians but not others? John Kerry gave a highly covered, nationally televised speech last week at Temple University. The substance of the speech was front-page news across the country. Sound bites from it led all the major newscasts. It was analyzed by talking heads. It was rewritten into wire service reports. But no one – not one news agency, not one analyst, not one commentator – mentioned Kerry's slip of the tongue. It was an embarrassing one for the presidential candidate. After he made it and corrected himself,...