SEOUL -- These days, artist Oh Sung-cheol is thinking about what kind of message he wishes he could convey to people in North Korea, the country of his birth.
The rival Koreas have recently engaged in a tense propaganda back and forth across their heavily militarized border. The North has floated hundreds of balloons into South Korea loaded with animal excrement and garbage. The South answered back with loudspeakers blasting K-pop songs.
