Thanks to M. who found this article from the New York Times. Interesting. It lends even more weight to The Mother Tongue.
"Business universities are driving the trend, partly because changes in international accreditation standards in the late 1990s required them to include English-language components. But English is also spreading to the undergraduate level, with some South Korean universities offering up to 30 percent of their courses in the language. The former president of Korea University in Seoul sought to raise that share to 60 percent, but ultimately was not re-elected to his post in December."