Robert H. Jackson, Bakery and Pastry Drivers and Helpers Local 802 v…
“ Picketing by an organized group is more than free speech, since it involves patrol of a particular locality and since the very presence of a picket line may induce action of one kind or another, quite irrespective of the nature of the ideas which are being disseminated. Hence those aspects of picketing make it the subject of restrictive regulation.But since 'dissemination of information concerning the facts of a labor dispute' is constitutionally protected, a State is not free to define 'labor dispute' so narrowly as to accomplish indirectly what it may not accomplish directly. ”
