Transplantable organs from man-pig chimera?

pig-with-human-face-dieThe Frankfurter Allgemeine Zeitung today has a very interesting article on a conference of stem-cell researchers in Bonn, where a professor from Japan, Hiromitsu Nakauchi, has presented plans concerning the cultivation of human organs for transplantation … in genetically manipulated pigs. At this stage it is not yet cler whether this project, if it really can be realized, poses new ethical problems, or whether it is a contribution to avoiding or solving them.