Shuttle Atlantis in a post 9/11 world

Shuttle Atlantis crew just entered their bus for the short trip to go to the Shuttle craft. Seemed like every other prelaunch setting, except with one difference. In this 9/11 world, there were soldiers with machine guns surrounding the bus to ensure security. That image will be burned into my memory and the old one from a pre 9/11 world, will be replaced. How sad.