According to the Korea Herald's Jin Hyun-joo, South Korea's "government and Internet portal sites said on Wednesday they would take stern measures against the possible spread on the Internet of the video showing the beheading of the Korean hostage [Kim Sun-il, who was recently captured and executed in Iraq]... With its emergency monitoring system running for 24 hours, the Ministry of Information and Communication said it would advise Web sites to get rid of the clips as soon as they discovered them. 'The Web sites that fail to follow through the instructions will be subject to shut-down or police investigation,' an official at the ministry said. 'The current law dictates that the government is allowed to call for the revision of Web sites that have unsound or cruel content. On top of that, we will take strict measures, like prosecuting the operator of the Web site.'"
UPDATE: Today's Digital Chosun Ilbo adds that the videoclip showing Kim Sun-il's decapitation "was spread throughout the world by seven US [Internet] sites, but it has not been found yet how the murderers posted the video on those sites. If the route is tracked, it could lead to arresting the murderers. Al-Jazeera is the only broadcasting company that is officially confirmed to have received the video from the murderers. Spokesman Gihad Ballot, however, said during a conversation with this reporter over the phone, 'We received the video from the group that killed Kim, but we did not sell it anywhere. I think that the group itself may have posted the video on the Internet to spread it.' ...The video even includes the images of the beheading that Al-Jazeera...did not air because they were too gruesome... With the cooperation of the [South Korean] Police Agency, the Ministry of Information and Communications (MIC) shut down access to those US websites that carry the video. The video, however, has been rapidly disseminated through those who already downloaded it..."