San Francisco's most lethal tourist attraction is getting ready for a makeover. The Pampanito, a World War II-era submarine that sank six Japanese ships and damaged four others, has been sitting for too long in the harsh salt water of San Francisco Bay. The boat has algae and all sorts of tiny sea critters living on her hull, along with the rust, chipped paint and general disrepair that come with age. To spruce up the old warship and keep it as a floating tourist attraction at Fisherman's Wharf, the Maritime National Historical Park Association will take the Pampanito to Alameda...