Some see it as the greatest scientific breakthrough in the history of medical research. Others as a blasphemous attempt to play God. Researchers have pioneered an amazing genetic technique that can regenerate functioning organs inside the human body. The medical implications are staggering: Could humankind become immortal? In a worldwide media spotlight, an unprecedented "science court" has been convened in Washington, D.C. to hear the evidence and decide whether or not the experiments should be…