evidence: The masking policy I just don't think is particularly effective anyway but there’s no reason that you can’t bring it back. So say, worst case scenario after Omicron, there's another variant that's even more infectious, but is more deadly. You know, it wouldn't be a bad idea for our public health agencies to really put some money into studies about different kinds of masks, KN-95, etc. to see exactly the impact they have, and how effective of a tool are they. Because we know of the downsides, but it is really important as we layer on risk mitigation, and then pull it back, that we that we have a quantitative guess at least as to the amount of impact that's going to have. More than two years into this, we really don't know that number. We just don't have robust data to tell us that our mask mandates really do much. We looked at a couple of different school districts and counties in Florida and Tennessee, in North Dakota, looking at schools that have mask mandates and those that don't with similar vaccination rates. There's no difference in the school transmission.