and the truth is we move forward, john, in this pandemic, and through this pandemic. we need effectively tools to help us understand what is going to happen before it happens. we need early indicators, we also need to look at later indicators. so right now waste water may be one of the tools. we know looking at proactive surveillance testing can help us well, understanding what is happening in emergency rooms in terms of surveillance, how many cases of covid-like illness are coming in, that could be useful and hospital sanizations and de. the bottom line is we re building more and more tools to help us figure out what the future may look like, and when to dial up or dial down precautions. that s going to be an important part of how we get through this pandemic and learn to live with this virus. saved by the waste water. who knew. doctor, tests to stay in schools is the change the administration advocated for, one things to