The plans for disruption are already being laid by nefarious groups who have openly announced their agendas...and then we have the nut cases who will be out and about on that exciting day.
I recall the Boston Marathon too well....and things are even more dangerous and emotionally-charged right now.
Inaugural balls and private parties welcome and encouraged...entree to these events can be controlled.
I wouldn't be surprised if Mr. Trump wasn't thinking long and hard along these lines and how to handle Inauguration Day festivities sucessfully and safely.
Leni