It's happening Tex, it's just not being reported in the press.
I was contacted by phone from someone claiming to be from the FBI about 2 weapons I own. Iw as asked if I still owned them and could I account for my where-abouts. I said I did still own them and and yes I could account for my where-abouts. I questioned him about how he obtained my info and that I thought Maryland didn't keep records like that. He said that he got the info from the original hard copy of the disclosure form I filled at the Gun dealer. I'm guessing he meant the 4473 that has the 7 questions on it that require a (YES) in order to walk out with the gun.
I didn't feel like I was treated like a criminal, but I have to question how he was able to get this info legally. The LEO on the phone did not say a thing about surrendering my gun for ballistic finger-printing, he just asked if I was willing to be interviewed if asked. I said no problem and he said thank You and hung up. An insurance adjuster I know was also contacted and was simularry questioned.
Don't ever give information to anyone you don't know, over the telephone.....Don't do it. If it's important and legitimate, they will personally contact you by mail, with letter head, and a call back number, or in person with ID in hand.