My son teaches English in Pusan. He emailed me saying that they were mainly pro-commie demostaters from the University, and he said they were not anti-american as the US press makes out they want more money for there products and the Unions want more control of the factories. He said, what we are seeing via pictures is for pormotional value.
Many of them are farmers against opening the domestic market for agricultural products. However, unions leaderships are hardcore pinkos. Their agenda is more than having better say in running their company. Unions dues help pay for many leftist rallies, such as opposing S. Korean troop deployment to Iraq, which has nothing to do with their stated union business.
Union goons and students are hardcore pinkos trying to exploit farmer's anger to propel their anti-American and anti-globalization agenda.