Could an alien from outer space get a green card? Could they become a citizen? Just how does citizenship and immigration work?
Coneheads (1993 film)
TVTropes: Inhumanable Alien Rights
Naturalization Oath of Allegiance to the United States of America
Japan’s requirements for citizenship
Russia’s requirements for citizenship (Unofficial UN translation)
Is the U.S. the most immigrant friendly country in the world?
Jus soli Legal Definition