Video shows oil leak from ocean floor.
There is dramatic video from the floor of the Gulf of Mexico showing the massive movement of oil rising from the floor and into the sea, meanwhile in Washington, there is new indications of how it may have started, NBC reporter Jay Gray has the latest.
The images show the continuos spraying of a thick stream of oil entering the sea water while the slick it has made gets closer to the shore. Louisiana Governor Bobby Jindal and local leaders toured the southern edge of the state from the air. There is growing concern now that the dispersants used to break up the slick may only be pushing the oil below the surface. A Congressional investigation into the cause of the spill uncovered a series of mechanical and procedural problems which centered around the blow out preventer on the well.