Taiwan's taekwondo fighter Yang Shu-chun (C) and her coach (R) greet supporters after arriving at Taoyuan International Airport November 22, 2010. Former Asian champion Yang was disqualified in sensational circumstances, when officials stopped her bout against a Vietnamese competitor and disqualified her for wearing unauthorised sensors in her footwear. Taiwan President Ma Ying-jeou stepped into the politically-charged dispute over the disqualified taekwondo fighter on Thursday, demanding event organisers at China's Asian Games re-examine her case and offer a better explanation. -Photo by Reuters