I'm Peter Roberts, immigration attorney who does work for YC and startups. AMA

Is there a policy that requires that people denied entry be returned to the country they are citizens of?

The wording of 8 USC 1451(a) is not limited to particular questions on visa or green-card applications. The statute refers to how the "order and certificate of naturalization were ... procured" which arguably encompasses everything leading up to the order and certificate. Moreover, the statute has two separate prongs for revocation: (1) the "order and certificate of naturalization were illegally procured"; or (2) "were procured by concealment of a material fact or by willful misrepresentation."

The way government prosecutors interpret these statutes is to push each of these terms and prongs as far as they can logically go. For example, you could argue that the phrase "illegally procured" encompasses any unlawful activity that has some arguable nexus to the visa or naturalization process.

As to the second prong, 8 USC 1427(a) sets forth extensive requirements for who qualifies for naturalization. The requirements are extremely vague and broad:

> No person, except as otherwise provided in this subchapter, shall be naturalized unless such applicant, (1) immediately preceding the date of filing his application for naturalization has resided continuously, after being lawfully admitted for permanent residence, within the United States for at least five years and during the five years immediately preceding the date of filing his application has been physically present therein for periods totaling at least half of that time, and who has resided within the State or within the district of the Service in the United States in which the applicant filed the application for at least three months, (2) has resided continuously within the United States from the date of the application up to the time of admission to citizenship, and (3) during all the periods referred to in this subsection has been and still is a person of good moral character, attached to the principles of the Constitution of the United States, and well disposed to the good order and happiness of the United States.

That third requirement is so broad that almost any fact about a person could be deemed material to the naturalization decision. Now, remember that 8 USC 1451(a) only allows naturalization to be revoked based on concealing or misrepresenting material facts. So it must be the case that you were arguably required to disclose the fact to the government at some point and either didn't or misrepresented the fact. But if you made an omission or misstatement on any government form ever, that could be fair game for bringing revocation proceedings.

I was on a big road trip across the country visiting national parks. I went to Organ Pipe Nat. Monument in Arizona which literally touches the Mexican border.

On my way there I drove through a border patrol checkpoint 10 miles north of the border inside the US. They don't check southbound traffic, only northbound. I never entered Mexico. On the way back I had to stop at that border patrol checkpoint. The border patrol agent was basically yelling at me for my passport. I told him I didn't have it with me. He yelled to see my driver's license. I gave it to him and he yelled at me "Why do you have a North Carolina driver's license?" I replied that is where I live and that is my home address on the license. He then screamed at me "Don't you know this is a prime drug running area?!" I told him "I have no idea and I'm not interested in drugs. There is a national park area 5 miles away, don't you get a lot of tourists here going to see that?"

I then noticed in my rear view and side mirrors that another agent was going around my car with a dog sniffing around. After about 2 minutes I saw the dog agent give a thumbs up and the rude agent said "Okay, you can go but you should carry your passport"

I had less rude experiences in Texas and California but still overly suspicious border patrol agents. One guy asked me what all the stuff was in my car. I actually offered him granola bars and soda cans and then showed him landscape pictures on my cameras. He realized that I was really a tourist and not into drugs or helping immigrants cross.