Thank you very much, Mr. Chair.
What I'd like to do, in order both to help Mr. Moffet respond and also to give a chance to the other witnesses to pursue this example of mercury, which seems to be pretty well documented in terms of its dangers to the population.... I've got a couple of questions, which I would invite Mr. Lourie or any of his associates to comment on. Why is it, if we know so much about mercury, we haven't, in this particular case, applied the precautionary principle? That's the problem.
Secondly, is there also a question of timelines? Has that been an issue, there hasn't been enough pressure to get on with it? I'd like some amplification about how we haven't done the most elemental thing here with mercury, and then I'd like Mr. Moffet to respond to the answers provided by the other witnesses.