waters off south korea called "operation invincible spirit," and we had a front row seat of the action today. the joint u.s.-south korea exercise took a live fire turn today. the ships of both countries aimed at a mock attack on abandoned submarine off the coast of south korea. tore peeds were used the sinking of a south korean warship by a submarine in march that triggered the continuations and the latest exercise. and there is action elsewhere in the sea of japan as i found out today. the destroyer is the front line of defense between north korea and all the rest of the ships in the huge naval exercise. the uss ship has radar that can spot anything coming from the north, and they can target the