You could pick a name out of the phone book and find someone with better credentials than Caroline Kennedy or Liz Cheney, writes Steve Chapman. But these names are not random. They are household names, made famous by their fathers: John F. Kennedy and Dick Cheney. So the daughters carry an aura of expertise and gravity in politics. But while a family connection may give clues to the policies someone will pursue, it reveals nothing about their abilities. After all, George W. Bush didn't inherit his father's knowledge of international affairs.