Scientists and theologians may disagree about when and how human life began. But for HHMI investigator David Haussler, there can be no argument about when it changed: July 7, 2000. "Humanity walked through a portal that day," he realized then, "and we can't go back." continued...

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Reprinted from the HHMI Bulletin,
September 2003, pages 28-31.
©2003 Howard Hughes Medical Institute