Thank you very much. I know my time is very limited.
Mr. Sokolsky, you said that participating in missile defence is not essential to NORAD, and then you went on to talk about the advantages of participating in ballistic missile defence. I guess I am asking you a double-ended question. Could you say a bit more about how you feel NORAD could continue to function well without Canadian participation, and secondly, what are the threats to Canada that would justify participation in ballistic missile defence?