SAN DIEGO -- The Navy is preparing to equip Los Angeles-class submarines with a Harpoon weapon system as a way to bridge a capability gap until the service can field its upgraded Tomahawk missile, according to a top admiral. Rear Adm. Daryl Caudle, U.S. Pacific Fleet submarine chief, told attendees last week at the AFCEA West Conference here the Navy will equip five to seven submarines per year with the Harpoon, beginning within the next year. "If I had to,...