>However, the same argument could be made for requiring everyone to display their social security number, which would pretty obviously not make through a court

>However, the same argument could be made for requiring everyone to display their social security number, which would pretty obviously not make through a court challenge. I really think that's a stretch. I get the similarity, however driving in a vehicle is not the same as walking down the street. You need to be registered to have a vehicle, you need to have a drivers license, you need to have insurance. There is nothing you need while walking down the street, except clothes in most places. So there is no good argument for forcing identification. As I took one step further for someone else, is the next argument going to be you don't have to publicly identify your aircraft when flying? Are we going to argue it removes privacy that an aircraft must identify itself with the FAA? I know you are just starting to toy with this argument. But I think it's easy enough to find so many differences between a person walking down the street and having a vehicle which we regulate for many good reasons. Interesting topic though, for sure.