Watch the video for the info. Skip the 1st 3 minutes because he does a stupid comedy thing at 1st for some reason.

The basics of t is. He works on diesel trucks as a hobby and mods them to get more HP. He watched a video online about silencers for ARs or AKs then later he bought a couple cases of oil filters that he uses a lot of. A while later the local police and FBI show up and ask hm about the sliencers he bought and wants him to turn them in o them. He has no idea what they are talking about till they show him a list of everything he bought online and point out he filters. He takes them to his garage and makes them look like fools and they leave but not before making a remark about sending the EPA over concerning the mods he does on the trucks. I guess as retaliation for making them look foolish.

It shows that they somehow are tracking what you watch online and what you buy.
He commented that he will just buy direct from China from now on.