Americans who are concerned about traditional freedoms and the Second Amendment have no difficulty understanding the message of the popular bumper strip: "If guns are outlawed, only outlaws will have guns." It should be just as easy to grasp the corollary: If nukes are outlawed, only terrorist countries will have nukes. But somehow, Barack Obama and Chuck Hagel don't get it. In a 2007 campaign speech, Obama promised: "Here's what I'll say as president: America seeks a world in which there are no nuclear weapons." Chuck Hagel is listed as one of six directors of a dangerous group called "Global...