I'm guessing that Korean schools want bi-lingual teachers. And there's nothing wrong with that. The problem lies in testing and compensation. When I taught in California, teachers who were fluent in a second language received additional pay generally amounting to one-third of their starting salary. Example: a newly credentialed teacher who also speaks Spanish, Chinese (Mandarin or Cantonese), or Vietnamese would have a starting pay of $36,000/yr PLUS a second language bonus of $12,000/yr. As for the testing, teachers who claimed to be fluent in a second language had to sit an exam in that language and were tested in reading, writing, and speaing fluency. I can't see many schools in Korea willing to cough up that kind of money for a trained, bi-lingual, professional OR be filling to foot the bill to test language skills. . Hell, I can't see too many schools anywhere in Asia willing to pay that. It just isn't a priority for them.