Whoops! Gotta’ be careful about those propensities!
The U.S. Court of Appeals for the D.C. Circuit said expressive dancing “falls into the spectrum” of prohibited activities—including demonstrations, picketing and speechmaking—at the memorial. The rules, the court said, ban conduct that has the “propensity” to draw onlookers. The court’s ruling is here.
via Appeals Court: No Dancing Allowed at Jefferson Memorial – The BLT: The Blog of Legal Times.
Truth and Traditions 
The complete lack of awareness in the irony of the ruling is shocking as well as frightening.