A bill to change South Korea’s legal term for North Korean defectors set off a shouting match at the National Assembly Thursday after an opposition lawmaker challenged Unification Minister Chung Dong-young over the proposed name. “Minister Buk Dong-young, why is it OK to call me ‘bukhyangmin?’” asked Rep. Park Choong-kwon of the main opposition People Power Party, who fled North Korea in 2009. He had replaced Chung’s surname with “buk,” the Korean word for north. Rep. Lee Ki-heon of the ruling Democratic Party of Korea shot back by asking whether he could call Park “Tal Choong-kwon.” He took “tal,” meaning escape, from “talbukmin,” the term commonly used for North Korean defectors in the South. Chung demanded an apology. Park apologized before the meeting resumed. The exchange came as the Foreign Affairs and Unification Committee took up a bill introduced by Rep. Kim Jae-won of the Rebuilding Korea Party. It would replace the legal term for North Korean defectors with bukhyangmin, a term for people whose hometowns are in North Korea. The unification ministry