These are people for whom there are warrants—people who have gone into the immigration system, gone through the applications, got turned down. But there are a lot of people who come into the country under a visitor's visa and stay on, and we have no idea what those numbers might be. So when it comes to people who are potentially illegally in the country, that's just one component. And then we have the issue of social insurance numbers—there are hundreds of thousands more numbers than potential workers.
At one time, the whole question of exit controls was raised. We're probably one of the only western countries that still hasn't put in place exit controls, a monitoring device. When people come into the country, we go through a passport control. It gets noted. But we don't do it on the other end, when people exit the country.
Has there been any attempt to take a look at what the cost would be to implement that type of regime?