'N.Korean Officer' Says North Sank the Cheonan A North Korean Army officer has testified that the North Korean military attacked the South Korean Navy corvette Cheonan before it sank in the West Sea on March 26, the head of a South Korean activist group claimed Monday. Choi Sung-yong of the Family Assembly Abducted to North Korea said, "It seems that the Cheonan was sunk in a premeditated North Korean operation." Choi published a transcript of a telephone conversation with what he says is a senior North Korean Army officer. According to the transcript, the officer says, "Thirteen commandos who left...