South Korean protesters hold a banners at a rally supporting the stem-cell scientist Hwang Woo-suk near the prosecutors' office in Seoul February 21, 2006. South Korean prosecutors have a plan to summon the disgraced cloning expert Hwang Woo-suk and his key colleagues for final confirmation of details on its criminal investigation into the fraudulent works in two landmark papers on human embryonic stem cells, local media reported. REUTERS/You Sung-Ho