Oil continues to pour into the Gulf of Mexico from the April 20 explosion of a BP-leased rig, threatening further impact to the region's environment and economy. BP has taken responsibility for cleanup costs and will attempt to install shutoff valves as well as siphon the oil to a barge on the surface. Why have previous containment efforts failed, and what techniques can be used to stem the flow of oil?
Ashley Powers, LA Times reporter in New Orleans covering the story
David Kent Sr., CEO of RIGZONE, an online oil and gas industry website, providing industry news and information.