Satellite images show Gulf spill has grown tremendously in a couple days as rough seas thwart cleanup effort | MAP• Obama to Visit Gulf Coast for Update on Oil Spill• SLIDESHOW | LIVESHOTS: How to Skim an Oil Slick• 'The Bad One': Spill Has Recipe for Catastrophe BP Drill Plans Downplayed Risk of Rig Accident• LOCAL COVERAGE: New Orleans | Gulf Coast | Fla.