Surveyor Mark Bentley examines the valve of a bladder removed from a freight container in Valdez, Alaska, June 13, 2013. A Unified command consisting of the Coast Guard, Alaska Department of Environmental Conservation, City of Valdez, and Gallagher Marine Systems LLC, was formed in response to oil found leaking from multiple bladders aboard the BBC Arizona, May 31, 2013. (U.S. Coast Guard photo by Petty Officer 1st Class Shawn Eggert)