The United States is an open society. Unlike many other countries, the United States does not impose internal controls on most visitors, such as registration with local authorities. Our immigration law requires consular officers to view every visa applicant as an intending immigrant until the applicant proves otherwise. In order to enjoy the privilege of unencumbered travel in the United States, you have a responsibility to prove you are going to return abroad before a visitor or student visa is issued.
The visa interview will take place at the U.S. embassy or consulate in the country where you live. You will be interviewed by a consular officer who will determine if you are qualified to receive a visa. He or she will review your documentation and visa application, ask you questions about your personal history and the reason for your trip to the U.S.
The Democratic People's Republic of Korea (North Korea) requires that its citizens obtain an exit visa stating the traveller's destination country and time to be spent abroad before leaving the country. Additionally, North Korean authorities also require North Korean citizens obtain a re-entry visa from a North Korean embassy or North Korean mission abroad before being allowed back into North Korea.