Migrant labour has filled a significant void in New Zealand when we don't have sufficient people with the requisite skills so that businesses have had to seek those labour units, those people from offshore, to come into New Zealand. We must remember that, actually, immigration is about New Zealand—it's about a benefit for New Zealand. We bring people in here to fill roles that we can't fill ourselves, and so it is primarily for our benefit. Having said that, we must ensure that those migrants that do come into New Zealand are not exploited. As part of that, the businesses that bring people into New Zealand make a significant effort to protect those people because, of course, they are benefiting from them, and they want as much productivity out of those people, and happy staff are productive staff.