WORLD IN BRIEF : SOUTH KOREA : Students Blocked on Border March

Two thousand radical students hurling firebombs and rocks battled riot police in Seoul after they were blocked from marching to the heavily armed border to demand unification with Communist North Korea. At the DMZ village of Panmunjom, 35 miles north of Seoul, 700 North Koreans joined by two South Korean activists rallied in support of the protesters in Seoul. Officers firing tear gas dispersed the students at nightfall. Police said they had arrested 750 people but let most of them go with a warning. The protesters were among 20,000 students holed up at two Seoul campuses since Monday to mark a weeklong “pan-national unification rally.”