However, South Korea no longer preaches ethnic homogeneity, nor do its citizens think ethnicity is the sine qua non of national membership.
Or it could be that North Koreans become attracted to South Korean attitudes about all sorts of things: work, hobbies, leisure, sex, relationships, and marriage.
As the barriers between the two countries begin to erode, a cloistered Korea will be meeting a global Korea.
Many South Korean families maintain a jokbo, or genealogy book, stretching back hundreds of years.
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Trump addressed the U.