for the last three months all i've heard is this is the worst environmental disaster in the history of the country. >> the question i have is the question that has loomed for weeks and months now. the gulf of mexico is pretty deep. and that oil sinks. and it goes out there. we're always wondering how many years or months certainly would it be coming back to haunt us over its own time span? we wouldn't get all the damage right away. it would come in depending on storm conditions and currents. how do you know it's not out there in bulk as bad as we thought it was? perhaps four million barrels sta still out there? >> there's a lot we don't know. it's nice to hear the alarmists admitting we don't know how bad this is going to be. in oil spills in the past there have been some long-term impacts. exxon veldez" the fisheries v d haven't entirely recovered.