That might help against lone intruders or in small groups who still hope to see another day.
What happens when they arrive in willfully suicidal throngs with torches in hand and murder and destruction in eye and “Yes Master Satan” in soul?
Baltimore came close. But short of a divine miracle, a full military presence is going to be needed to thwart such throngs.
I musta been watching a different video. Seems like they run away decisively at the first sounds of gunfire they didn't create.
We had this crap knocked in the late 80's-90's. The Clintoons were the beginning of this l'il fiasco. d;^)