It was brought into somewhere in the Mississippi system to prevent something else from happening. It was working out fairly successfully until a huge flood came and released all of the dikes and so on, and the Asian carp got loose and started swimming north. That's how the Asian carp became an invasive species in the Great Lakes system.
From all reports and from the coast guard, those electrical wires are doing a very good job. When you hear what can happen, it's a bit frightening. When they come in, they just clean everything out. They're a scourge. It's a real challenge to make sure that we keep it under control.