Heres the issue for us with inspecting/importing from the USA.
We are English, living as permanent residents in Canada (fully legal I might add
We were not aware that our permanent resident (paper) visa was abolished in 2002 in preference to a card, which we do not have yet. We cannot therefore visit the USA without a whole lot of red tape. Its not the leaving, its the getting back. So going to the USA is not yet an option for us.
But when I have the card, just try and stop me!