Assault Upon Our Children", Se-Woong Koo wrote that "the system's dark side casts a long shadow. Dominated by tiger moms, cram schools and highly authoritarian teachers, South Korean education produces ranks of overachieving students who pay a stiff price in health and happiness. The entire program amounts to child abuse. It should be reformed and restructured without delay." In a response to the article, educator Diane Ravitch warned against modeling an educational system in which children "exist either to glorify the family or to build the national economy." She argued furthermore that the happiness of South Korean children has been sacrificed, and likened the country's students to "cogs in a national economic machine". A 2014 Lee Ju-ho, the minister representing the Ministry of Education & Science Technology, announced a plan on 8 February 2011, to dispatch un-hired reserve teachers overseas for extra training despite the opposition from the Korean Teachers Union and other public workers in the city-level and the provincial level. South Korean schools have a strong tendency to neglect physical education due to the over-emphasis of classroom-based education. 81% of middle and high schools forbid relationships among students. A citizen group under the Unification Church gives out sexual virginity awards under an uncertain standard. The low emphasis on vocational education and stigmatization in Korea with regards to skilled trade or vocational careers (often dismissed as DDD jobs, 'dirty, dangerous, and demeaning' with low social standing). It has been additionally been criticized for producing an oversupply of university graduates in the country which means that university graduates often have difficulty in finding jobs while many vocational occupational positions sometimes go unfilled. According to Jasper Kim, a visiting scholar of East Asian studies at Harvard University, "There are a lot of highly educated, arguably over-educated people, but on the flip side, the demand side, they all want to work for a narrow bandwidth of companies, namely the LGs and Samsungs of the world". Kim also states that many highly educated South Koreans who don't get selected often become second-class citizens, with fewer opportunities for employment and even marriage. There are concerns of overload of schoolworks and exam preparations that could threaten the students' health and emotions. The South Korean education system does not allow any leeways for students' rights. The Superintendent of Seoul Metropolitan Office of Education Kwak No Hyun made a remark how "it is very embarrassing to discuss