This is too much about you and not enough about . . . whatever it is about.
Okay. I'll try again:
Leni Riefenstahl in her most infamous film, Triumph of the Will, provided an accurate view of what was at the time the embodiment of the socialist ideal, the mass of uniform drones robotically marching in blind obedience to a single will as embodied in the leader. In the film Liefenstahl gave us an hours long display of soulless conformity. The purpose of which was to demonstrate the power of the National Socialist state
To demonstrate his power over the people of our nation Barack Obama ordered the closure of open air monuments in the City of Washington. Physical barricades were erected to block off the citizens from open public property.
On Sunday October 13, 2013, veterans of conflicts from the Second World War to the present War On Terror, along with other citizens, demonstrated their will and authority. They dismantled the barricades and deposited them at the gates of the White House.
This demonstration was the open display of disobedience to the leader. It was the defeat of the will of Barack Obama.
To address the grounds given for the action, does the President of the United States have the authority to shut the public out of public spaces?
An argument in favor of doing so on the basis of public safety falls a bit flat when the cost of doing it is greater than the cost of properly manning the sites.
That should work.