Experts Reading U.S. Military Exercises by Yoo Yong-won (kysu@chosun.com) The U.S. Forces Japan conducted an exercise this week in which it moved a marine battalion from Okinawa to Pohang on Korea's southeast coast via high-speed ship; the exercise coincided with a public exhibition by U.S. Forces Korea of its intelligence equipment at Camp Humphries in Pyeongtaek, south of Seoul. USFK officials said the two events were unrelated to the North Korean issue, but analysts are saying that the activities were unusual enough to conjecture that they had been designed as a message to send to North Korea. About 600 marines...