http://chronicle.com/img/photos/biz/Ticker%20revised%20round%2045.gifBy . At least nine students and one event organizer were killed on Monday, and others were feared to be trapped, after a roof collapsed during a South Korean university’s freshman-orientation event, according to reports by the Associated Press and Xinhua, the state news agency of China. About 560 students of the Busan University of Foreign Studies had gathered for the event, which took place at a resort in the southeastern city of Gyeongju. More...