U.S. starts deploying anti-missile system in South Korea after defiant North's latest test

By James Pearson and Ju-min ParkSEOUL (Reuters) - The United States started to deploy the first elements of its advanced anti-missile defense system in South Korea on Tuesday after North Korea's test of four ballistic missiles, U.S. Pacific Command said, despite angry opposition from China.The announcement came as North Korean state media said leader Kim Jong Un had personally supervised Monday's missile launches by an army unit that is positioned to strike U.S. bases in Japan, stepping up threa