While they do help prevent IDing, I did find it interesting how Michael Rainoehl (we got a couple trumpers right here! here? BANG BANG) was able to avoid local and state police for weeks because the police said "he was wearing a mask so we dont know who he is" but the minute he pulled up to his girlfriends house out of state, the feds descended on him and he had to run out to his truck to grab his rifle that was still packed away.

It shows that the feds have many ways of getting someone even and are probably waiting to pounce on many until they get jurisdiction