I've spoken with Dr. Lee, and he hasn't said that when he has briefed parliamentarians here, so there's a difference of opinion and even a difference of reporting on the published documents that exist, but bitumen does separate from diluent.
The question of how quickly it weathers, how quickly it sinks and how we would possibly manage a cleanup is put in a particularly harsh light by the recent efforts off the coast of Newfoundland to deal with the Husky oil spill, which isn't bitumen and is conventional crude. We're really quite limited in the ability to respond in the open ocean in harsh conditions. It's difficult to see how anything in the oceans protection plan would give anyone on the west coast any comfort about the threat of a dilbit spill.