Large Oil Spill on the Mississippi?

From the AP (thanks mw and Ben):
NEW ORLEANS - A huge oil spill was spotted near two storage tanks on the Mississippi River downstream from New Orleans, state officials said Friday.  The oil was seen in a flyover to the Venice area by the Department of Environmental Quality.  "Two tanks with the capacity of holding 2 million barrels appear to be leaking," the department said in a statement.  No further details were given.
The ecological scope of this disaster continues to amaze.

Update [2005-9-2 12:11:40 by Prof. Goose]:Environmental Economics points us to this:

To give a frame of reference, the Exxon Valdez spilled 257,000 barrels, from its cargo of over 11M barrels. Not many details yet, but if true, this has the potential to be a major environmental (and economic) event.

Update [2005-9-2 12:17:28 by Prof. Goose]:Here's a very impressive site from the Society of Environmental Journalists that is covering many angles of this ecological nightmare.