Four weeks ago, on Saturday, September 16th, in clear, calm, warm summer weather on Puget Sound, something happened while Shell Oil was testing its new, post-Deepwater Horizon oil blowout containment dome. The dome system was being deployed during a certification test being performed by Shell, its agent in the refurbishment and system makeover of the 35-year-old barge, Arctic Challenger, Superior Marine Technical Services, the U.S. Coast Guard, and the U.S. Bureau of Safety and Environmental Enforcement (BSEE).