You MUST have national ID so the fed will know who you are, yet if you get pulled over by a cop the first thing he does is contact NCIC (a national data base) to find out (at a national level) who you are. Further, it's so fast he knows before ever he gets out of his car. So two questions, what difference does it make to the fed, because the fed already knows who I am, and , what difference does it make to me, because the fed already knows who I am?