In a ghostly reminder of the Bay Area's nuclear heritage, scientists announced Thursday they have captured the first clear images of a radioactivity-polluted World War II aircraft carrier that rests on the ocean floor 30 miles off the coast of Half Moon Bay. The USS Independence saw combat at Wake Island and other decisive battles against Japan in 1944 and 1945 and was later blasted with radiation in two South Pacific nuclear tests. The Navy deliberately sank the contaminated ship in 1951 south of the Farallon Islands. The rediscovery of the USS Independence offers a fascinating glimpse into American military...