MerryLander:
I THINK (not sure) you're referring to a proposal to "fingerprint" the ballastics of every weapon so that it can be identified if a crime is committed and a bullet is recovered...
THAT is a non-starter.. The govt can't possibly make such a program work.. OR ---
maybe you're referring to the insistence of some on the left that the Insta-Check database be retained, applications and all so that ANY govt agency has access to it.. Not gonna happen because that's defacto registration of each sale..
I know of no other legislative edict that "prevents" the tracing of guns used in crimes. If it was sold thru a Fed registered dealer, it can be traced. Don't know whether you're complaining about a LAW, a regulation or whether you think the REPS blocked some law/regulation that should be ennacted...
Don't get your pants in a wad til we figure this out. Eh?
Of course, we just found out last month that our own BATF was running THOUSANDs of military weapons across the southern border KNOWING that they would end up in drug cartel hands.. Betcha the paperwork on THOSE sales were just perfect and traceable...