S. Korea moves to stop anti-Northern activists

South Korea's government says it will take legal action against two organizations there who, it says, are endangering efforts to keep peace with the North -- efforts that have already seen a marked plunge in recent months.And it comes only a day after North Korea cited such groups to justify cutting some diplomatic channels, including daily phone calls.The two groups are called the Kuensaem Education Center and the Fighters for a Free North Korea.They're both run by people who defected from Nort