South Korea is going to require video distributed via the internet to be rated before it can be distributed, according to a report in the Korea Times (Online Video Clips to Receive Ratings). The purpose of the law is to reduce violence, which includes organized criminal activity, privacy violations and libel (something a bit lost in the translation, I think). In any case it will likely have a bigger effect in squelching free speech and amateur video. A couple of other aspects that seem a little strange:

To tackle online privacy infringement, the government is also considering making Internet users disclose their real names....The government will also urge people privately publishing gossip to register the reports as regular publications.