Stem cell research follow up

Stem Cell Side Shows from NYTimes

"'Scientists experimenting with mice have devised two new ways to derive embryonic stem cells without destroying viable embryos. The work is being hailed for its potential to sidestep some of the ethical controversies that have slowed stem cell research in this country. But each of the new techniques raises ethical issues of its own, and neither is apt to be ready for use in humans for many years."