Officials from South Korea and U.S. are due to meet in Seoul for talks over sharing the defense cost of American troops stationed on the peninsula.<br />According to a diplomatic source,... Chang Won-sam from Seoul's foreign ministry and his U.S. counterpart Timothy Betts will sit down on Tuesday.<br />The two officials were the chief negotiators of the previous talks on the 10th Special Measures Agreement - a defense cost sharing deal signed in March for keeping the roughly 28-thousand U.S. troops stationed in the South.<br />They plan to exchange views on the 11th S-M-A negotiations... that will be launched soon.<br />