The sun sets over the Development Driller II, which is working on the secondary relief well. The rig is one of dozens of vessels stationed at the Deepwater Horizon spill site. (Photo by Justin Nobel/约炮视频 Magazine) Deepwater Horizon spill site, 50 miles off the coast of Louisiana, August 6 An orange helicopter flies me to a Coast Guard cutter where I board a speedboat meant for chasing down drug runners and plow through warm salty waves, heading for ground zero of the biggest environmental disaster in U.S. history. There are ships with superstructures on their bows meant to land helicopters, ships with spools the size of suburban homes on their decks and floating fortress-like platforms called mobile offshore drilling units; two are drilling relief wells and one has just capped the Deepwater well with mud and cement. Dozens of smaller vessels mill about the behemoths, ferrying food, parts and fuel. The odd assembly resembles an outpost for an outcast race of machines, some Coast...