Canada has an information-sharing agreement with regard to persons who are encountering enforcement action and who are not Canadian or American citizens. If it's a Canadian resident or a third-country national who is stopped on the American side, detained and questioned, then we have an information-sharing agreement that enables us to share information on a personal basis, on an individual basis. We don't have to go and ask what the story is about; they can tell us why they've detained them. On a Canadian citizen, as long as it's for a consistent use, we're able to share that information.
With regard to CBP telling us about certain circumstances, they have a terrorist database that is the one often in the news about Canadians, terrorists, entering the United States and about Canada being a hotbed for terrorists, etc. They tell us from that database on a monthly basis how many persons are intercepted and where those persons could be intercepted as they have a U.S. preclearance in Canada or in other countries. There could be someone who is intercepted at the land border or it could be someone who flies directly into the United States from a Canadian airport that doesn't have a preclearance facility. They tell us they've encountered this many Canadian citizens this month and have determined they were terrorists. We can then go and ask for more information.