May the government regulate or restrict the insertion of extremist propaganda into commercial products?
No one has the right to place anything in a commercial product without the permission of the product’s manufacturer, distributor or seller. States may enact laws that make it a crime for an unauthorized person to place anything in a commercial product. For instance, California Penal Law states, “Any person who stamps, prints, places, or inserts any writing in or on any product or box, or other container containing a consumer product offered for sale is guilty of a misdemeanor.” Under the law, “writings” include handbills, notices, and advertising.