You've stated in a previous comment that non-US citizens can be denied entry to the United States if border officers request access to your phone and you decline to do so.
... but what about when non-US citizens leave the US?
For example, as a Canadian, if I'm down in the US and, on my way back up to Canada, a US border officer requests access to my phone and I decline... what happens then?
... but what about when non-US citizens leave the US?
For example, as a Canadian, if I'm down in the US and, on my way back up to Canada, a US border officer requests access to my phone and I decline... what happens then?