Okay.
I have another question.
I live in a border municipality in southern Ontario. It is very common for residents in my community to drive, either by bus or personal vehicle, to Detroit to fly to any number of destinations. These people could fly to Cuba, Central America, Mexico, or wherever, outside of the continental U.S., and return. Then they return to Canada by land. This does not require any advance reporting mechanism. But if they are flying in the United States, is there an advance reporting mechanism there that would follow that person?