I am mostly curious if any gun related checks do (I have some but been a long while since I bought new and not from someone I know), but really would be nice to know about other situations. Been thinking of being more serious in my personal studies (aka my backlog of books), and even try joining a party like the PSL. Just thought about asking after the topic of the "Red Scare" and McCarthy hearings got randomly brought up while hanging with some friends.
I know that the question (or some form of it) has been found unconstitutional and removed from things in the past. But would still be good to be aware of when it might be brought up or asked in an indirect way to avoid legal technicalities that stop it being asked that way.
They get denied residency and citizenship, usually