I took a team of analysts to tour Calvert Cliffs, not only did we have to submit our identifications in a advance but before we were allowed to tour we were searched. If I knew some stranger in a uniform was going to physically search my person looking for 'weapons, devices, dangerous stuff' I may have not gone. They knew we were government employees but they had a procedure they had to follow. There were armed guards everywhere......I don't know why I was surprised because I worked on a Military Base in an Agency that had heavily armed guards and during high alert times, snipers all over the place. It really was naive of me to think a Nuclear Power Plant wouldn't have been heavily guarded....I think I was just accustomed to breezing thru checkpoints with my badge.
That was the long way around to say that if a mob of screaming rioters were advancing on the Fort or the Nuclear Facility there would have been heavy resistance as well as immediate reaction from every conceivable agency that has armed police/guards/peacekeepers. Two years ago, there was an active shooter in the News Room of the Capital in Annapolis. We live just minutes away and the first indication something was wrong was the massive amount of emergency vehicles (no sirens or lights) flying past our community. Armed personnel were streaming in from Ft. Meade, The Naval Academy, State and County Police, DEA, Coast Guard, Surrounding Counties, I know I missed some orgs but suddenly there were more policemen than residents.
My point is, massive forces across Jurisdictions, State, County, City, Federal were there in minutes.................there is no reason in the world there wasn't a similar reaction when the anarchists stormed the Capitol Building.