A fierce moral debatewhether the therapeutic potential of stem cells could justify destroying embryos to get themappeared to vanish when scientists in Wisconsin and Japan announced that they had figured out how to convert adult skin cells into near-perfect copies of the wonder cells. More research remains to be done, but this might be the most delightful discovery since common bread mold birthed the age of antibiotics.
Person of the Year 2007
His final year as Russia's President has been his most successful yet. At home, he secured his political future. Abroad, he expanded his outsizeif not always benigninfluence on global affairs