place over -- over the past three semesters, so this is our third semester working with covid protocols in place, whether it's the filtration or whether it's the kind of the vaccine mandate or whether it's actually the testing protocol. i think that los angeles, we have really one of the strongest testing protocols around, so even those positivity rates you just described, you know, today we're seeing lower numbers. it's about 13% for our students, 11%, just under 12% for our employees, so having people in school is safer for them and we think that's what's going to be shown as people return to our campuses. >> look, i know a lot of parents are appreciating you to fight to keep student in class as much as possible. we're seeing examples in, you know, minnesota and indiana, many other places, of schools having to pull back already from what they are seeing. for you, what is your measure at this point that would force you