First, I want to be clear that the airport is not able to hire CATSA staff. It's under the purview of CATSA to hire CATSA staff, and they're working on that to get back to their regular volume, so we're not in a position where we can fund additional staff. That's just to be clear on that one.
Yes, I think the Public Health Agency of Canada has done a great job. I'm certainly not a health expert, but our airports have been strong supporters in making sure that all the elements they needed at our borders have been in place. However, they have moved forward on waste-water testing. Pearson has been part of a pilot in that, and we're seeing waste-water testing in our communities. They're doing this in the U.K. as well, testing off site within the community. There are ways they can monitor variants, according to PHAC, in terms of looking at variants that are coming into the country and within our communities. Waste water has been seen to reveal those variants four days earlier.
We're just asking Public Health to look at other measures that don't impede the flow of traffic at our airports.