. >>> south korean defense minister kim kwon-jin has warned north korea ahead of a contentious anniversary. 46 south korean seamen were lost three years ago when north korean forces allegedly sank a warship. kim visited the island close to where the ship went down. he told troops to stay on high alert. >> translator: if north korea provokes us again, we have to retaliate strongly to prevent them from even thinking about attacks in the future. >> international investigators concluded the ship was torpedoed by a north korean submarine, but pyongyang denies involvement. north korea has reacted angrily to u.s./south korea joint military drills, meaning tensions remain high ahead of the anniversary. >>> traditional japanese textiles usually found under foot are popping up in different places. these coin cases and belts are made from a cloth. it covers the edge of floor mats to keep strands of straw from unraveling. fewer japanese use the mats so some are trying to stay in business by looking abroad. >> reporter: these products went on sale at a trade show held in paris last month. they were mad