He should really change his title toWhat to expect if you don't kiss the asses
of the bullies & morons at the US border
"What to expect, if you think entering another country is a right and not a privilege, at the US border"
It's their country, their rules, their border guards. They can ask you whatever the fuck they want to about what you're doing in their country before they decide to let you in, turn you away, or arrest you.