How do you clean up an oil spill?

From the center of New Orleans to the Gulf of Mexico, oil spilled for nearly 100 miles when a fuel-laden barge collided with a heavy tanker on the Mississippi River. What goes into cleaning up an oil spill?

But how exactly do you undertake the daunting task of cleaning up millions of gallons of oil? Agencies responsible for cleaning up oil spills -- like the Coast Guard and the Environmental… » Full Story on HowStuffWorks