Did you forget to include a sarcasm tag or are you serious?
Are you one of the ones that argues that a gun registry will reduce crime?
Do you really think that the really bad actors are going to register or that the rubber stamp background checks that will be done on 12 million by the totally overwhelmed and incompetent Immigration and Naturalization Service would detect them if they did? They can't handle their current workload of about 1 million legal immigrants per year. The worst of the illegals will either remain in the shadows or lie through their teeth.
One of the 1993 World Trade Center bombers was a beneficiary of one of the agricultural guest worker amnesties.