Today, I read those articles. I should read further.
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1873
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1884
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1887
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1891
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1901
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1913
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1917
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1926
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1932
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1938
http://world.kbs.co.kr/english/news/news_newissue_detail.htm?No=1946