USS Carl Vinson nears N. Korea as US expects ‘firepower display’

The Vinson battle group is nearing the Korean Peninsula, CBS News National Security Correspondent David Martin reports. It is south of the Tohara Strait, which is between Okinawa and the Japanese main islands in the Philippine Sea. Two Japanese destroyers have joined the Vinson, and when it gets closer to the Korean peninsula, it will also be joined by South Korean ships. The Vinson naval strike group is also expected to pick up a Chinese intelligence trawler, which will shadow it while it is in