(CNN) – The pictures are like a punch in the gut. Huge bands of syrupy crude oil are now snaking through the sensitive wetlands off Louisiana's coast. BP officials insist they're making a "measurable difference" containing the catastrophe. The oil giant is buckling to pressure from Congress, now allowing the world to see its live continuous video feed of the gusher at the bottom of the Gulf.
Steve Wereley is an associate professor of mechanical engineering at Purdue University. He was one of the first experts to question BP's estimate of 5,000 barrels a day leaking into the Gulf. He joined us on Thursday's American Morning to explain.
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