South Korea - 4 Activists Expelled From China - NYTimes.com SEOUL, South Korea - A prominent South Korean activist for democracy in North Korea, Kim Young-hwan, and three colleagues were expelled Friday from China, where they had been arrested March 29 on charges of "endangering national security." Little was known about what the four were doing in northeastern China, but their case galvanized public attention in South Korea because Mr. Kim, 49, was a nationally known student leader in the 1980s who campaigned against the South Korean military strongman Chun Doo-hwan. In 1991 he traveled to North Korea to meet its leader, Kim Il-sung, after which he became a vocal opponent of the North. Despite denials by South Korea, news media reports persisted that in return for the release, the government has agreed to repatriate a Chinese man who is serving a 10-month prison sentence for throwing firebombs at the Japanese Embassy in Seoul.