[JaRail]

It depends on the entry point. If I go through US customs in the Toronto airport, it's on Canadian soil. If someone there is having an issue with the process, they can withdraw their entry request and leave. That's perfectly fine and they shouldn't be punished for it. You don't have that option if you use a land crossing as you're physically inside the US.

[Marsymars]

> If someone there is having an issue with the process, they can withdraw their entry request and leave.

Since August 15, US border agents in Canada are now able to prevent you from withdrawing if they detain you. (Bill C-23)

[lonelappde]

Why would you be in US customs in a Canadian airport? I didn't know that exits.

[Taniwha]

Many US airports, especially away from the coasts, don't have any immigration/customs facilities, instead flights from Canada to the US go thru US customs in Canada (make sure you get to that flight early) since it's cheaper to put US facilities in a relatively smaller number of Canadian Airports

[filleokus]

Not sure if parent is talking about https://en.wikipedia.org/wiki/United_States_border_precleara... or not, but yes, that's a thing.

[souterrain]

I recommend caution when asking the agents at Shannon if the Republic of Ireland still has sovereignty from the United States of America. In my experience, it hits a nerve.

[devicetray0]

Why would you ask that?

[inerte]

The Bahamas also has US customs there. You do the immigration part before boarding your plane. And you land on the US on a domestic terminal and don’t go over customs.