How's this sound:
Government asks developer to make gun inventory program so you take pictures and a detailed inventory of your guns. Developer has program upload data to their website. Developers gives info over to .gov
...maybe my tinfoil hat is too tight?
You don't think they don't already know?
They can even make a good guess on your FTF long guns by the ammo you buy.
Your whole life is in a database. We know what you eat, wear, drive and do when you think no one is looking. We know how far you drive, and where, thanks to you phone and/or OnStar. We know how fast you drive, how hard you brake, how hard you corner. We now your 'hang outs'. We track EVERY word you use on the internet, but especially social media. We trend every word used, and where, and extract all posts using words we find 'interesting'.
Privacy is an illusion. Sleep well, my friends.