South Korea is home to more than 460,000 ethnic Koreans who have migrated from China. <br /><br />Their ethnic homeland is only a temporary home for the immigrants, however, because they are only allowed to stay for five years. <br /><br />Thousands of the arrivals in Seoul, whose visas are set to expire, are now concerned about deportation.<br /><br />Al Jazeera's Harry Fawcett reports from Seoul.
