PORT FOURCHON, La. – A welder fabricates a portion of the BP subsea oil recovery system chamber at Wild Well Control, Inc. in Port Fourchon, La., April 26, 2010. The chamber will be one of the largest ever built and will be used in an attempt to contain an oil leak related to the mobile offshore drilling unit Deepwater Horizon explosion. U.S. Coast Guard photo by Petty Officer Third Class Patrick Kelley.