It was only a matter of time, I suppose. Comic-book superheroes have gone into the liberal political indoctrination business.The September issue of the DC Comics book "Justice League of America," or "JLA," presents Superman, Batman and Wonder Woman as U.N.-promoting paper dolls for a thinly disguised propaganda play against President Bush's war on Saddam Hussein.The story begins with a "napalmetto" attack on home soil. President Lex Luthor -- how nice, a supervillain standing in for President Bush -- connects the terror attack to "Qurac" and says the "Joint Chiefs are recommending military pressure." Wonder Woman protests: "International law and...