Yes, of course, it's something I would be concerned with. If they're within the United States, they can obviously travel freely to Canada.
I would probably be more concerned with those individuals who are coming directly from other countries and not directly from the United States. Once they are in the United States, we generally have a better ability to monitor and source these individuals and case them. I think the hardest part is when they're actually working abroad, because that, as you well know, requires intelligence sharing and other types of elements that sometimes are beyond our control.
But in terms of sharing your concern, I would say...a little bit less than from other countries.