Glenn reacted on his radio program Friday.
"What matters is what mattered on 9/12," Glenn said. "Isn't it fascinating to you that we are being hit so hard and we will look this year at 9/12 and most of the destruction will be behind us and the cleanup will be headed our way. The choice to come back together and be decent to each other --- our choice is going to happen again on 9/11 and 9/12."
Watch the terrifying videos below to see just how devastating some of these forces of nature have been.