We don't know whether or not the top kill is working, but up to this point a federal government team has determined that the Deepwater-Horizon disaster is spilling much more oil than was originally estimated.
Using two methods -- one based on the amount of oil on the surface and the other based on video of the oil emanating at the source -- the group settled on preliminary estimates of 12,000 barrels (504,000 gallons) a day to 19,000 barrels (800,000 gallons) a day, said Dr. Marcia McNutt, director of the United States Geological Survey and the leader of the team.
You'll notice that the widget below has been adjusted accordingly -- on the low end of the scale. This is well beyond being the worst oil spill disaster in American history.