Anwar al-Awlaki came to study in the US, he came on a foreign student visa. You see, even though al-Awlaki was born in Las Cruces, New Mexico, his parents were not American citizens. In fact, after his father completed his studies here, the family returned to Yemen. Anwar would not even be considered a 14th Amendment citizen, which states "All person born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside." Anwar's parents were never US citizens, nor did they intend to become citizens; neither did his parents have "a permanent domicile and residence in the United States," which is the standard according to the Supreme court decision in United States vs Wong Kim Ark. According to the State Department, there are different rules, and, since al-Awlaki came to the US on a scholarship from Yemen, we can assume that he renounced his US citizenship, because Yemen does not recognize dual citizenship. Furthermore, his father was the Agriculture Minister in Yemen. Otherwise, why would al-Awlaki have come on a foreign student visa to study in Colorado in 1991?