Deep-sea explorers scouring the world’s oceans for sunken World War II ships are focusing in on debris fields deep in the Pacific, in an area where one of the most decisive battles of the time took place. Hundreds of miles off Midway Atoll, nearly halfway between the United States and Japan, a research vessel is launching underwater robots miles into the abyss to look for warships from the famed Battle of Midway. Weeks of grid searches around the Northwestern Hawaiian Islands already have led the Petrel to one sunken warship, the Japanese aircraft carrier Kaga.
