 Hugh Herr of the Massachusetts Institute of Technology is one of the world s foremost authorities in inventing hi-tech robotics to aid those with missing limbs. This is breaking science, the cusp where technology is entering the human body. Yet for Hugh, this is a very personal quest, for he is himself a double amputee. At age 17, he was a world-class rock climber. Caught in a terrible blizzard on Mount Washington in 1982, he barely survived, only to loose his legs # and, worse, to suffer the loss of one of his rescuers  lives. But, undaunted, Hugh took to creating artificial limbs that would enable him to continue climbing. Courtesy of his newfound pursuit, he reinvented himself spectacularly.