But that can have the perverse effect of making the banned object more enticing.
And yet ecstasy was a Class A banned drug and the object of great waves of concern from the media and politicians, while horse-riding was not.
Firemen are employed to burn the frightful banned objects that are books, in fear that they will make people think differently, question or, even worse, develop an imagination.
Fans threw firecrackers and flares inside and outside the stadium and banned objects were brought into the grounds despite close searching, security officials said.
Certainly, it is true that national boundaries are increasingly permeable and any effort by nations to exclude global pop culture usually makes the banned objects all the more irresistible.
At football stadiums security procedures have been stepped up after embarrassment at the mistakes at last month's Coupe de France final between Paris-Saint Germain and Olympique de Marseille at the Stade de France, when despite close searching of fans banned objects were in abundance, including firecrackers, flares and glass bottles, and there was a serious problem with overcrowding.
Cleveland officials have expressed concern about the Ohio "open carry" state laws that will allow people to take guns to events organized close to the Republican party convention – but have not given assurances of how they will police the use of guns and banned objects in crowded areas, where the atmosphere is likely to be highly charged.
The sultan banned any object that he considered decadent, which meant that Omanis were prevented from possessing radios, from riding bicycles, from playing football, from wearing sunglasses, shoes or trousers, and from using electric pumps in their wells.
A number of Republicans who spoke out against the ban objected specifically to the fact that it swept up green card holders, while others said it was done with too little consultation or was harmful to U.S. national security efforts.
The tools are already here, he noted: 3-D printing makes it "impossible to ban physical objects," from guns to drones.
However, she said she expected art and antique sellers to argue that a ban on trade in objects made pre-1947 - which she said could include Georgian chests of drawers, Victorian pianos or Art Deco figures - "will not save a single living elephant".
