Every 9/11 terrorist was Saudi Arabian.  Saudi Arabia idealized by all of Oil Monopoly and favorites of all administrations espcially Prince GWB who was feted and kissed during his visits.  Saudi Arabia is an Islamic Monarchy.  Will you immunize Saudi Arabians from your "lists"?  Or any of the other oil rich Emirates in the Middle East?  How do you differentiate?  I know, the whole idea is just too stupid to even consider for anyone with a semblance of a brain.  However it makes for nice fantasies for the video gamers and the Republican Fascists so into science fiction and the rest of unreality.