CBP Officers are trained to determine nationality without the use of documents or records.
They use a series of questions only a US citizen would know. Even Canadians get tripped up its a common occurrence along the northern border.
“CBP Officers are trained to determine nationality without the use of documents or records...They use a series of questions only a US citizen would know. Even Canadians get tripped up its a common occurrence along the northern border.”
Wow, that’s cool - thanks.