We believe the most cost-effective solution for isotope production continuity is extending the life of the NRU. In fact, it is the only really practical alternative available to us, given the licence renewal timing of 2011.
The long-term solution is one that has yet to be decided in any serious way. Anything is conceivable, but right now we believe that the NRU, because of the robustness of that design, does provide us with the most cost-effective solution to provide reliable isotope production within the foreseeable future.