Warning: The ATF keeps those records

Here's proof that the ATF keeps your name, and address on file after you purchase a firearm, exactly the way we were told would be illegal for them to do:

(Officer) Meloni said detectives worked with the United States Bureau of Alcohol Tobacco and Firearms to trace the ownership back to Smith. Meloni would not provide an address for Smith but said he is a resident of Timber Trail.

The poor guy dropped his gun in Illinois... he's royally screwed.