I always wondered when the underground entrance was sealed up. Years before 9/11, I think.
Even though there is a battalion of well-armed, well-trained Pentagon guards nearby, they’re all up topside at the entrance, none are down in the Metro.
Even during 9/11 alot of the employees remained in the pentagon.
One of my most favorite memorabilia I have is a picture of South Parking and the Pentagon in a rear view mirror. Everyone I worked with there signed it.