South Korean cloning pioneer Hwang Woo-Suk said that the cloning of human beings would remain an impossible and dangerous fantasy for decades to come. "Human cloning is not only ethically outrageous and medically dangerous, but technically impossible as well," said Hwang, who last year created the world's first cloned human embryonic stem cells. "Cloned human beings are merely a science fiction fantasy. I can assure you that on this globe, you'll never bump into a cloned human being at least within 100 years." Hwang and his colleagues at Seoul National University made international headlines in February 2004 when they announced...