For the primary threat, the integrated terrorism assessment centre, out of CSIS, is the lead for this. We feed them staff to help them work on these things, but for these issues, they're really our centre of excellence for the government.
Speaking generally, the terrorism threat in Canada is the inspired individual who is already in Canada. While there are certainly threats to aviation security that have to be monitored closely by Transport and others, by all of us, including through the NORAD construct, I think the chances are that events are going to happen in big urban centres, and they're going to be done by individuals who are already there and who are disaffected for some reason or another. Those are tough cases to track.