Every legislative body in America has a few idiots, dolts, nincompoops -- elected officials who would hardly draw any notice at all were it not for their incompetence, bigotry or venality. You can find them in City Halls, state legislatures and even the hallowed halls of Congress. So it hardly qualifies as front-page news that U.S. Rep. Barbara Cubin (R-Wyo.) recently made blatantly racist statements in which, in essence, she tarred all black Americans as drug users. Cubin's remarks punctuated a debate over a bill to limit lawsuits against gun manufacturers -- a debate that was already offensive since it...