HONOLULU (AP) - The wreckage of a large World War II-era Japanese submarine has been found by researchers in waters off Hawaii. A research team from the University of Hawaii discovered the I-401 submarine Thursday during test dives off Oahu. "We thought it was rocks at first, it was so huge," said Terry Kerby, pilot of the research craft that found the vessel. "But the sides of it kept going up and up and up, three and four stories tall. It's a leviathan down there, a monster." The submarine is from the I-400 Sensuikan Toku class of subs, the largest...