By using a simple recipe of four genes to reprogram ordinary adult cells into stem cells, the new approach appears to bypass the ethical, religious, and political objections that have blocked government funding for research on stem cells culled from human embryos.
Embryonic stem cells have been likened to blank slates because they replicate themselves endlessly and can form any of the 220 cell types in the body, including blood, bone, organs, and nerves. - Source: Boston Globe
The bottom line as said by Rev. Tadeusz Pacholczyk: "These new strategies remind us . . . it is never necessary for laboratory researchers to cross fundamental moral lines in order for science and medicine to advance."