last month. over the last two weeks lost 825 points closing around 10,380 today. let's turn to the attempt to stop that mat ish oil spill threatens the gulf dproeftspreading. bp lowered a containment dome more than 5,000 feet below sea level. david mattingly joins us with more from louisiana. how. going? what do we know? >> reporter: wolf, bp officials told me a couple hours ago they expected to see that dome sitting on the ocean floor and in place by later this afternoon. there's no confirmation yet that has happened, but if they are successful it would be a huge step forward in stemming the flow of oil into the gulf of mexico. wolf? >> you also spoke with those official, and they told you t t that, you asked them why they didn't have better emergency response operation in place when this disaster occurred.