The so called "background checks" are really only criminal history checks. Real background checks like the multiple ones that I have had for various jobs are very intrusive and expensive for the agency conducting them. If you know some of the history regarding background checks, it was only through restrictions passed by congress that stopped the states and the justice dept. from keeping those records permanently. But for that, you have "registration". Were has registration led to confiscation? 1. The Soviet Union 2. Nazi Germany. OK, that doesn't concern you since we are not a totalitarian state as they were? Well, more recently you can add, 3.Great Britain 4.Australia