Our managed isolation facilities are among the tightest in the world. That is not to say that there's no risk; there is absolutely risk there, and we do everything we can to drive that out and to stay vigilant. The work we have been doing around air ventilation systems, around staff training, around personal protective equipment, around vigorous monitoring, around vaccination of the border workforce—around all of those things—are all contributing to continuing to tighten up that system, but there is no such thing as no risk.