Aerial view of Runit Dome, in Enewetak Atoll, the Marshall Islands, where more than 3.1 million cubic feet of U.S.-produced radioactive soil and debris, including lethal amounts of plutonium, are buried. The so-called “Tomb” now bobs with the tide, sucking in and flushing out radioactive water into nearby coral reefs, contaminating marine life. Photo: Carolyn Cole / Los Angeles Times