N. Korean Defections Raise Questions about Security, Loyalty

N. Korean Defections Raise Questions about Security, Loyalty: Three defections across the heavily fortified Demilitarized Zone separating North and South Korea are raising questions about the global flashpoint.

South Korean officials said three North Korean defectors have sneaked across the DMZ in the past three months, one of them announcing his arrival by knocking on the door of a South Korean barracks.

That incident has drawn a public rebuke from South Korean President Lee Myung-bak, who summoned the defense minister Thursday and said those ...