After Stem-Cell Breakthrough, the Work Begins The New York Times, Nov. 27 News last week that scientists in Japan and Wisconsin could turn human skin cells into cells that behave like embryonic stem cells, able to grow indefinitely and to potentially turn into any type of tissue in the body was exciting last week, but Andy Pollack from The New York Times explains how scientists still face the challenge of taking that abundant raw material and turning it into useful medical treatments, like replacement tissue for damaged hearts and brains. Still, the new discovery should accelerate progress — if only because with the ethical issues seemingly out of the way, more scientists and money will be drawn to the field.

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