At 118 years old, the world's oldest living person is preparing to carry the Olympic torch this May in Japan. Kane Tanaka, who has twice survived cancer, lived through two global pandemics and loves fizzy drinks, will take the flame as it passes through Shime, in her home prefecture of Fukuoka. While Tanaka's family will push her in a wheelchair for most of her 100-meter (about 328 feet) or so leg, the supercentenarian -- a person aged over 110 years old -- is