There was a lot of excitement this week over the new trailer for the big Star Wars sequel out later this year. Among the big revelations was a villain after the tradition of Darth Vader, complete with deep voice and black costume. But here in Korea, you don’t need to play pretend in order to ride like a Sith lord! You see, here in Seoul, we’ve got air pollution! A city of 25 million and all of its traffic must produce its fair share, but the worst of it is what blows over from China.