A South Korean student shouts slogans at a candle light vigil in Seoul held by supporters of stem-cell scientist Hwang Woo-suk who was a professor at Seoul National University, January 11, 2006. Hundreds of supporters of Hwang gathered in central Seoul on Wednesday to demand that the university give opportunity to Hwang so that he can reproduce his work. The president of the university apologised on Wednesday for scientific fraud at the school, saying two fabricated papers on stem cell research had embarrassed the country and science. REUTERS/Lee Jae-Won