I am a dual citizen (this includes US citizenship) and I was always amazed at how I'm treated when entering the US. It is as if the border guards were deciding

I am a dual citizen (this includes US citizenship) and I was always amazed at how I'm treated when entering the US. It is as if the border guards were deciding whether to let me in or not! (Actually, I think this is exactly what they're doing) I mean, what does it matter where I'm heading in the US, where I work, or where my family lives? How is that anybody's business? I'm entering my own country, after all! As a comparison, in most European countries the passport control does two things, and two things only: a) determine whether you are a citizen (e.g. passport control), b) determine whether you are a criminal that needs to be arrested immediately. There is no other option. If you are a citizen of the country you are entering and they don't arrest you right away, they can't detain you, question you, harass you, or do anything else. There are no questions about where you're heading, where you work, what you do for a living. There would be no point in asking: as a citizen, you have the right to be heading anywhere, working anywhere, or actually not making a living at all. Land of the free, indeed.