I think it's important to understand that when somebody is detained, every 30 days—first after 48 hours, then seven days and then every 30 days—they are brought before the IRB for a detention review hearing. We always hope to try to resolve whatever the matter is at the time when those hearings take place. If we're not able to resolve that, the person goes back into detention until we can figure things out.
If it's an identity thing.... Some people have done this for a very long time, and we work very hard try to figure out who they are. I would say that recent changes to capturing biometrics on entry of foreign nationals is something that will change this over the next couple of years, but there still are some people for whom we're just not satisfied that we know who they are, and if we don't know who they are, we don't know what risk they represent, so we will continue to detain them.