The year 2014 is the centenary of Sir Ernest Shackleton's Endurance expedition, which aimed to complete the first crossing of Antarctica. He did not succeed, and his great vision rapidly turned into a now-legendary struggle for survival. Shackleton's lifelong dream--to cross the continent--was at last realized by Sir Vivian Fuchs and Sir Edmund Hillary in 1957-58. As a key member of this Commonwealth Trans-Antarctic Expedition, Everest veteran George...