World's Deepest-Diving Submarine Missing Tuesday July 1, 2003 12:49 AM By HANS GREIMEL Associated Press Writer TOKYO (AP) - The world's deepest-diving submarine has disappeared in the choppy Pacific Ocean off Japan, a setback to deep-sea research on everything from earthquakes to rare bacteria. Kaiko, a bright yellow submarine which entered the record books in 1995 by diving 36,008 feet to the bottom of the Challenger Deep - the ocean's deepest point - snapped its tether as a typhoon approached in late May and has been missing since then, officials said Monday. Daniel J. Fornari, chief scientist for deep submergence...