Why Did the CDC Keep the Schools Closed?

I think in the broad strokes, it has to do with what they would call, in philosophy is called an appeal to authority. So if it wasn't empirical evidence that they were making their decisions based off of, what was the why? Why were they keeping the schools closed here in America? Well, that's a very, I have probably like a thousand page book that's going to answer that question. What is the why? And certainly more so than me, I'm just an independent journalist. This wasn't even my beat necessarily."