NK's Arirang for President Roh Moo-hyun PYONGYANG _ North Korea considerably modified its mass gymnastics and artistic show by taking out parts that stress ideological loyalty and adding content to honor visiting South Korean President Roh Moo-hyun, who watched it Wednesday night. Following his summit talks with North Korean leader Kim Jong-il, Roh, accompanied by North Korea's titular head of state, Kim Yong-nam, watched the "Arirang" performance at Rungrado May Day Stadium, the world's largest football stadium capable of seating over 150,000. The show, officially called the Grand Mass Gymnastics and Artistic Performance, usually starts with a prelude and proceeds to a main scene, followed by scenes 1, 2 ,3 and 4 plus a conclusion. The North removed the regular prelude, which stirred controversy in the South because of its praise of the late North Korean leader Kim Il-sung and his son Kim Jong-il. Instead, it used a prelude in which performers waved paper peonies and azaleas...