According to Wikipedia ( https://en.wikipedia.org/wiki/World_Trade_Center ):
"When the World Trade Center twin towers were completed, the total costs to the Port Authority had reached $900 million", much, MUCH less than the price paid by the American people for last decade's wars.
Please remind the citizens of the U.S. that they are free to peacefully assemble, to organize themselves, to use available blueprints, dummies, full scale replicas of planes and WTC buildings, in order to reenact, in a remote location, some of the events of September the eleventh, 2001.
Reenacting some of the events of 9/11/2011 will indeed bring change and hope, will boost confidence, credibility and stability, will promote prosperity both in the U.S. and all over the world.