good or bad?

Scientists close to producing baby from two dads from The Hindu

"Yet this startling idea is now a serious scientific prospect, say
researchers. Breakthroughs in stem-cell technology could soon lead to
`non-traditional' parents having their own offspring, not always with the help
of a woman's genes, some scientists saying within the next four years. The new
technology currently falls outside existing controls on human fertilisation
science."

[...]

"The technique behind this revolutionary science has been developed
over the past two years. "We still have several years to go before we can use it
on humans," said Professor Harry Moore, of Sheffield University's Centre for
Stem Cell Biology. Following pioneering work on mice carried out by American
researchers, teams — including Moore's — have used embryos donated by patients
undergoing IVF.
"You allow the embryo to develop for a short period in the
laboratory. Then you take out the cells from which it is composed," he said.

These cells are known as stem cells and they have the potential to turn
into cells of any type of tissue: skin, heart, kidney or brain, for example.
What researchers are now doing in laboratories round the world is developing
techniques to turn these stem cells into specialised cells.
Thus
insulin-secreting cells could be created for diabetics and brain cells for
Parkinson's patients."