It depends on elementary, middle, and high and how in depth we go with that. And it also includes some of the 4E components. We may not be in all of them, depending on the age, but we do absolutely have intruder drills as well with all of our students. And so that's part of like under the education, the training umbrella. And then when you think about the physical structures, right, prevention. We did, I believe, it was two years ago, we had a comprehensive state safety study. And out of that safety study came up a lot of different things that we as a district needed to focus on. And we invested a lot in that. And so one of the things that you've seen now, it should be almost every building, yeah, it is, completed are the safe, secure vestibules. Spervantage of Education, Proposition O, levy, agenda, motion carried. Spervantage, we're actually building a building during the school day. And pretty soon we're actually, we've added sensors to the outside door. So if a door is left open, it should send a text or some sort of messaging to the building administration. We're just waiting for the computer like hub to make sure that that's completely activated. We are also adding something new called the intruder alert response system in all of our buildings. Basically what that does is at a push, on the push of a button, I'm trying to see if there's one in the hallway.