The study that I referenced won't reveal that. The study that I referenced was the assessment of the threat of arrival and establishment of Asian carp populations in the Great Lakes. You will hear from, as I understand, David Ullrich later in the week. He's the executive director at the Great Lakes and St. Lawrence Cities Initiative. David's group, in conjunction with the Great Lakes Commission, funded that study on separation, and they have three options in their study, which was released in January, I believe it was, of 2012.
The cost of each one of those options are in there. There are no recommendations, but there are three options in there. So there's an option for one barrier, and an option for two, and I believe three or four, depending on where you put them in the system. So that's the most current information that's out there in terms of the actual cost.