Big Oil Uses Toxic Chemicals to Clean Up Spills. Will the Feds Finally Make Them Stop?

In 2010, the Deepwater Horizon oil rig exploded, killing 11 workers and setting off the worst oil spill in US history. The images are unforgettable: The Gulf of Mexico on fire. Pelicans emerging from the water entirely covered in thick, black oil. Planes flying overhead, spraying more than a million gallons of an oil-dispersing chemical called Corexit in an attempt to control the spill.