In the study that I mentioned we're doing—with the shipping company going down to Brazil—we're trying to determine whether or not, if we did this for transoceanic vessels coming into Canada, this could provide us with another level of protection.
We haven't suggested that we should do this for the lakers. The problem with the lakers is that there's no good place for them to do ballast water exchange. We want mid-ocean salinity, which Transport Canada defines as salinity greater than 30 parts per 1,000. Fresh water is zero parts per 1,000.
So the vessels have to come in with greater than 30 parts per 1,000, and there's no place on the St. Lawrence River where you're going to find 30 parts per 1,000. The only way you could potentially use ballast water exchange as a mechanism to reduce risk of lakers is to make them go well out into the Gulf of St. Lawrence and then come back. And no one's going to do that.