I know a few folks who were crawling around on their knees in the Pentagon that day.
One of our Customers was in the Army and stationed at the Pentagon on 9/11. Big Dude, his forearms were as big as my Legs. The greatest guy you could ever meet.
He went into the still smoldering ruins, dug through the rubble and carried out all the dead and wounded he could find. Most if not all of the injured People he attempted to save died of their Injuries.
Afterward, he went over to the Sandbox and evened the Score many times over. He may have been a Sniper, can’t remember.