There is a very strong interest by some groups to move to closed containment. We have done a science review of that and have determined that economically there is no functioning, valid, commercial-level containment anywhere, that we're aware of. Additionally, there's a significant energy input in operating a closed containment facility. Finally, there are some significant technical issues around the implications of how to put one of these in place.
Notwithstanding that, we are doing experimentation with the province and with the industry looking at a potential containment that might be applicable in the longer run, but we're mindful that at this point in time there is no commercially available product or economically sound system that we're aware of so far.