>Although, I'd still like to know how "required FBI background check", which I bet all are tracked and cross-referencable with the requestor, thereby giving a s

>Although, I'd still like to know how "required FBI background check", which I bet all are tracked and cross-referencable with the requestor, thereby giving a synthetic key to "gun purchase" does not translate to database of potential gun owners. The NICS dataset is really bad for this sort of thing, because it's used for many purposes other than "checking eligibility to purchase gun". For example, Kentucky does a NICS check on every concealed carry permit holder every single month. Other states do the same thing, but perhaps only on a subset of permit holders or less frequently. It's my understanding that some private background check companies also use it as part of their research for job applicants and the like.