Massive Oil Slick Threatens U.S. Gulf Coast

PORT FOURCHON, LA - MAY 05: Workers prepare to load a four-story pollution control chamber which will be lowered 5,000 feet below the surface of the water to capture oil gushing from the collapsed oil well off the coast of Louisiana onto a ship May 5, 2010 in Port Fourchon, Louisiana. The chamber, commissioned by BP, is planned to be lowered onto the leaking pipe by end of the week to try to suck in the flowing oil to tanker ship on the surface. The Deepwater Horizon offshore oil well began leaking after the rig caught fire and collapsed last month. (Photo by Scott Olson/Getty Images)