NPR reports. That figure is at least 10 times the U.S. Coast Guard's original estimate of the flow, and "the equivalent of one Exxon Valdez tanker every four days."

"And nobody really knows where it is, or where it's headed."

Seriously? is this for real!?thats extremely dangerous and if it ignites its game over for the US the toxic fire would be so huge that no one could put it out the fumes and smoke would blow across the country poisoning everything animals plants and people.