This is directly from the: AMERICAN CITIZEN SERVICES NEWSLETTER – DECEMBER 2007
You can sign up for it directly here: http://www.asktheconsul.org/
The Korean government is considering allowing men who have served their military service and foreigners with certain skills to hold two passports. Currently, male Koreans are allowed to hold citizenship from another country until they turn 18, when they must choose between the two. Under the tentative new plan, Koreans who finished military duty at least two years before applying and non-Koreans with special skills would be eligible for dual citizenship. For more information (in Korean only ) see
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U.S. law does not contain any provisions requiring U.S. citizens who are born with dual nationality or who acquire a second nationality at an early age to choose one nationality or the other when they become adults. The current nationality laws of the United States do not specifically refer to dual nationality.